Comprehensive Mold Acceptance CriteriaI
I. Mold Appearance
1. Nameplate Content: The mold number, weight (in KG), and external dimensions (in mm) should be clearly marked on the nameplate using 1/8-inch character stamps. Characters must be clear and neatly arranged.
2. Nameplate Fixation: The nameplate should be securely fixed to the rear side of the mold legs near the reference corner, approximately 15mm from each edge, using four rivets to ensure it does not peel off easily.
3. Cooling Nozzles: Cooling nozzles should conform to plastic block inserts with a diameter of 10mm, available in G1/8", G1/4", or G3/8" specifications. Special requirements as per contract should be followed.
4. Nozzle Protrusion: Cooling nozzles should protrude from the mold frame surface but should not recess more than 3mm into the outer surface.
5. Clearance Holes for Nozzles: Clearance holes for cooling nozzles should have diameters of 25mm, 30mm, or 35mm, with chamfers greater than 1.5×45° applied uniformly around the hole edges.
6. Inlet/Outlet Markings: Inlet and outlet markings should be indicated as "IN" for inlet and "OUT" for outlet, followed by sequential numbers (e.g., IN1, OUT1).
7. Labeling Standards: All labeling characters (uppercase letters and numbers) should be 5/6 inches high, positioned 10mm below the nozzle, ensuring clarity, aesthetics, uniformity, and consistent spacing.
8. Oil and Air Nozzles: Similar to cooling nozzles, oil and air nozzles should be labeled with "G" (gas) or "O" (oil) preceding the IN/OUT labels, leaving one character space before IN/OUT.
9. Mold Installation Direction: Water nozzles installed in the vertical direction should be embedded and equipped with flow channels or supported by pillars underneath for protection.
10. Protection for Exposed Nozzles: Oil or water nozzles that cannot be embedded should be protected by support pillars.
11. Reference Corner Symbols: Each template should have a reference corner symbol labeled "DATUM" in uppercase letters, 5/16 inches high, positioned 10mm from the edge, ensuring clarity, aesthetics, uniformity, and consistent spacing.
12. Component Identification: Each template should have component identification numbers placed 10mm below the reference corner symbol, following the same standards as outlined in point 11.
13. Accessory Interference: Mold accessories should not interfere with hoisting and storage. Supports should protect exposed components like cylinders, nozzles, and pre-reset mechanisms during installation.
14. Support Leg Installation: Support legs should be secured using screws through the legs into the mold frame or, if too long, threaded externally and tightened onto the mold frame.
15. Ejection Hole Specifications: Ejection holes should match the specified injection machine. For molds larger than 500mm in length or width, a single central ejection is generally not allowed. The ejection hole diameter should be 5-10mm larger than the ejector pin.
16. Positioning Ring: The positioning ring should be securely fixed with three M6 or M8 hex screws, typically with a diameter of 100mm or 150mm, protruding 10mm above the top plate. Follow special contract requirements if applicable.
17. Installation Hole for Positioning Ring: The installation hole must be a countersunk hole and should not directly touch the mold frame's top surface.
18. Heavy Mold Installation: For molds weighing over 8000KG, screw-through methods should be used for securing rather than relying solely on clamping plates. If hydraulic locking is used, additional screw-through holes are required as a backup.
19. Sprue Bushing Radius: The radius of the sprue bushing should be larger than that of the injection machine nozzle.
20. Sprue Bushing Diameter: The entry diameter of the sprue bushing should be larger than the nozzle's injection port diameter.
21. Mold Dimensions: The mold's overall dimensions should comply with the specified injection machine.
22. Installation Direction Indicators: For molds requiring specific installation directions, arrows indicating the direction should be marked on the front or rear templates with "UP" next to the arrow. Arrows and text should be sprayed yellow using stencils, 50mm high.
23. Surface Defects: The mold frame should be free from dents, rust, unused lifting rings, water/oil/gas ports, and other defects affecting appearance.
24. Chamfer Specifications: All mold frame plates should have chamfers greater than 1.5mm.
25. Hoisting Convenience: The mold should be easy to lift and transport without disassembly (except for separately packaged cylinders). Hoisting ring positions can be adjusted to avoid interference with nozzles, cylinders, and pre-reset rods.
26. Hoisting Ring Requirements: Components weighing over 10KG should have suitable hoisting ring holes or measures to ensure ease of disassembly and assembly, designed according to relevant enterprise standards.
27. Hoisting Balance: Hoisting rings should be fully inserted to ensure balanced lifting.
28. Ejection Mechanism: Ejector pins and blocks should not interfere with sliders; forced pre-reset mechanisms should be included, with limit switches on the ejector plate.
29. Cylinder Control: Hydraulic cylinder core pulling and ejection should be controlled by limit switches, installed securely.
30. Oil Manifold Stability: The oil manifold should be securely mounted.
31. Oil Hose Connections: Oil hoses connecting the manifold to cylinders should use standard hose fittings.
32. Ejector Plate Cleanliness: The ejector plate should be free from debris.
33. Support Pillar Area: Support pillars should cover 25%-30% of the area between the square legs and the back template.
34. Pillar Height: Support pillars should extend 0.05-0.15mm above the mold legs without interfering with ejection holes.
35. Locking Mechanism: Locking devices should be securely installed with alignment pins, symmetrically placed, with at least four (two for small molds).
36. Spring-Assisted Opening: Three-plate molds should have springs between the front template and sprue plate to assist in opening.
37. Interference Check: After all parts are assembled in large molds, there should be no interference upon closing.
38. Extended Nozzle Compatibility: If the injection machine uses an extended nozzle, the positioning ring should provide sufficient internal space for standard heated extended nozzles.
39. Angle Consistency: All angled ejectors should be removable through a hole aligned with their angle passing through the base plate and ejector bottom plate.
40. Flat Screw Surfaces: Bottom surfaces of screw holes should be flat.
41. Screw Quality: Screws M12 and larger should be imported (grade 12.9).
II. Ejection, Reset, Core Pulling, and Part Removal
1. Smooth Ejection: The ejection process should be smooth without any jamming or unusual noise.
2. Angled Ejectors: Angled ejectors should have polished surfaces, with their faces 0.1-0.15mm below the core surface.
3. Guide Slots for Angled Ejectors: Angled ejectors should have guide slots made of tin bronze, embedded in the rear mold frame, secured with screws and positioned using locating pins.
4. Ejector Pin Surface: The end face of ejector pins should be 0-0.1mm below the core surface.
5. Oil Grooves on Sliding Components: All sliding components (except ejector pins) should have oil grooves and undergo nitriding treatment to achieve a hardness of HV700 (as per customer requirements for large sliders).
6. Anti-Rotation Positioning for Ejector Pins: All ejector pins should have anti-rotation positioning according to three standard methods, each with an identification number.
7. Full Reset of Ejector Plate: The ejector plate should fully reset to its original position.
8. Limitation of Ejection Distance: The ejection distance should be limited using limit blocks made of 45# steel, ensuring flat bottom surfaces; screws should not be used as substitutes.
9.
Standardized Return Springs: Return springs should be standardized parts, with neither end ground or cut.
10. Spring Installation Holes: The bottom of spring installation holes should be flat, with hole diameters 5mm larger than the spring diameter.
11. Internal Guide Rods for Large Springs: For springs with diameters exceeding 20mm, internal guide rods should be used, extending 10-15mm beyond the spring length.
12. Spring Selection: Generally, short-section blue mold springs (light load) should be used; red for heavy loads and yellow for lighter loads.
13. Pre-Compression of Springs: Springs should have a pre-compression amount of 10%-15% of their total length.
14. Material and Hardness for Sliders and Angled Ejectors: Sliders and angled ejectors should be made of 638 material, with a nitride hardness of HV700 or T8A, hardened to HRC50-55.
15. Travel Limitation for Sliders and Core Pulling: Small sliders should use springs for travel limitation; if springs cannot be installed, ball screws can be used. Hydraulic cylinder core pulling should have travel switches.
16. Angle of Inclined Guide Pins: The angle of inclined guide pins should be 2-3 degrees less than the locking angle of the slider. For long travel distances, hydraulic cylinders may be used.
17. Self-Locking Mechanism for Hydraulic Cylinders: If hydraulic cylinders are used for core pulling in thick sections, they should include a self-locking mechanism.
18. Anti-Ejection Structures: For structures like ribs or columns that are difficult to demold, anti-ejection mechanisms should be added.
19. Large Sliders Placement: Large sliders should not be placed at the top of the mold's installation direction. If unavoidable, increase spring strength or quantity and extend the core-pulling distance.
20. Slider Dimensions: The height-to-length ratio of sliders should not exceed 1:1. Length dimensions should be 1.5 times the width, and height should be 2/3 of the width.
21. Sliding Fit Length: The sliding fit length should be more than 1.5 times the slider’s directional length. After completing the core-pulling action, the retained length in the slide slot should be less than 2/3 of the slot length.
22. Inclination Angle for Sliders: Each direction of the slider (especially the sides) should have an inclination angle of 3-5 degrees to facilitate fitting and prevent flash. The sliding distance should be 2-3mm greater than the core-pulling distance, similar for angled ejectors.
23. Guidance for Large Sliders: For large sliders (over 30KG), guidance should use removable pressure plates in T-slots.
24. Spring Positioning for Sliders: If springs are inside the slider, spring holes should be fully machined on the rear mold or slider. If outside, spring fixing screws should have threads on both ends for easy slider removal.
25. Sliding Distance for Sliders: The sliding distance should be 2-3mm greater than the core-pulling distance, similar for angled ejectors.
26. Wear Plates for Large Sliders: Large sliders (width over 150mm) should have wear plates made of T8A, hardened to HRC50-55, protruding 0.05-0.1mm above the surface, with oil grooves.
27. Locking Surface Wear Plates: For large sliders (width over 200mm), wear plates should protrude 0.1-0.5mm above the locking surface, with oil grooves.
28. Position Lock for Slider Pressure Plates: Slider pressure plates should be positioned using a lock.
29. Intermediate Guidance Blocks: For sliders wider than 250mm, additional intermediate guidance blocks made of T8A, hardened to HRC50-55, should be added.
30. Texture for Adhesion Prevention: If the part tends to stick to the front mold, the side walls of the rear mold should have textures or preserved spark finishes, avoiding deep undercuts or manually added undercut ribs or pits.
31. Consistent Hook Directions: Hooks added to ejector pins should have consistent directions and be easily removable from the part.
32. Ejector Pin Dimensions: The dimensions of ejector pin heads, including diameter and thickness, should not be altered privately or padded with shims.
33. Ejector Pin Fits: The clearance between ejector pins and their holes, the length of sealing segments, and the surface finish of ejector pin holes should follow relevant enterprise standards.
34. Vertical Movement of Ejector Pins: Ejector pins should not move vertically.
35. Part Sticking Prevention: To prevent parts from sticking to angled ejectors, slots or etching should be added to ejector pins without affecting the part's appearance.
36. Delayed Ejection with Pusher Plates: When using pusher plates for ejection, delay the ejection to prevent white marks.
37. Flat Return Pins: Return pins should have flat end faces without spot welding, and no shims or spot welding should be applied to the bottom of the head.
38. Clearance Holes for Angled Ejectors: Clearance holes for angled ejectors should not be too large to affect appearance.
39. Secure Fixing of Ejector Blocks: Ejector blocks fixed on ejector pins should be securely attached, with non-forming parts machined at a 3-5 degree angle and chamfered edges.
40. Ease of Part Removal by Robot: Parts should be designed for easy removal by robotic arms.
41. Limiting Rods for Three-Plate Molds: Limiting rods for three-plate molds should be arranged on both sides of the mold's installation direction to prevent interference with robots, or external pull plates should be added.
42. Smooth Operation of Sprue Plate: The sprue plate of three-plate molds should operate smoothly for easy opening.
43. Cleaning Oil Passages: Oil passages machined in the mold frame should be cleaned thoroughly to remove metal shavings and prevent damage to the hydraulic system.
44. Smooth Oil and Air Passages: Oil and air passages should be unobstructed, and hydraulic ejection and reset should function correctly.
45. Robot Interference Avoidance: Guide pillars should not interfere with robot operations during part removal.
46. Offset Guiding Pillar: One guiding pillar on custom mold frames should be offset to prevent incorrect assembly.
47. Exhaust Ports for Guide Sleeves: Exhaust ports should be added to the bottom of guide sleeves to release air trapped when guide pillars enter the sleeves.
48. Tight Fit for Locating Pins: There should be no clearance when installing locating pins.
III. Cooling System
1. Adequate and Unobstructed Cooling Channels: Cooling channels should be sufficient and unobstructed, meeting the requirements specified in the drawings.
2. Reliable Sealing: Seals should be reliable with no water leakage, easy to inspect, and PTFE tape (Teflon tape) should be used when installing water nozzles.
3. Water Test Before Trial Molding: A water test should be conducted before trial molding with an inlet pressure of 4 MPa for 5 minutes.
4. Seal Groove Dimensions: Seal grooves should be machined according to relevant enterprise standards for dimensions and shape, located on the mold frame.
5. Grease Application for Seals: Seals should be coated with grease during installation and protrude slightly above the mold frame surface after installation.
6. Corrosion-Resistant Materials for Water Channel Partitions: Water channel partitions should be made of corrosion-resistant materials, typically brass sheets.
7. Centralized Water Delivery: Both the front and rear molds should use centralized water delivery methods.
IV. General Gating System (Excluding Hot Runner Systems)
1. Polishing of Sprue Bushing Main Runner: The main runner inside the sprue bushing should be polished to a surface finish of ▽1.6.
2. Polishing of Runners: Runners should be polished to a surface finish of ▽3.2 or with 320-grit oilstone.
3. Runner Cross-Section in Three-Plate Molds: The cross-section of runners exiting from the backside of the front template in three-plate molds should be trapezoidal or circular.
4. Sprue Break in Water Gate Plate: In three-plate molds, the diameter of the runner entry point on the water gate plate should be less than 3mm, with a 3mm deep step recessed into the water gate plate at the ball tip.
5. Secure Fixation of Ball Tip Puller Rods: Ball tip puller rods should be securely fixed, either by pressing them under the locating ring, using headless screws, or securing them with a clamp plate.
6. Opening Distance Between Ejector Plate and Water Gate Plate: The opening distance between the ejector plate and water gate plate should be approximately 10-12mm.
7. Opening Distance for Easy Removal of Sprue: The opening distance between the water gate plate and front template should be suitable for removing the sprue, generally calculated as sprue length divided by 20-25 and greater than 120mm.
8. Limiting Rods for Front Template in Three-Plate Molds: Limiting rods should be used for the front template in three-plate molds.
9. Precision Machining of Gates and Runners: Gates and runners should be machined using CNC machines, milling machines, or EDM according to the dimensions specified in the drawings; manual grinding is not allowed.
10. Standard Processing for Pinpoint Gates: Pinpoint gates should be processed according to standard specifications.
11. Protrusion and Corresponding Depression: There should be a small protrusion on the front mold at the pinpoint gate location, with a corresponding depression on the rear mold.
12. Cold Slug Well: At the front end of the runner, there should be an extended section serving as a cold slug well.
13. Smooth Transition for Z-Shaped Reverse Hooks: Reverse hooks on puller rods should have smooth transitions.
14. Circular Surface for Runners on Parting Line: Runners on the parting line should have a circular surface, ensuring no misalignment between the front and rear molds.
15. Surface Shrinkage on Submarine Gates: Submarine gates on ejector pins should not exhibit surface shrinkage.
16. Design Standards for Cold Slug Wells in Transparent Products: The diameter and depth of cold slug wells in transparent products should meet design standards.
17. Ease of Removing Sprues: Sprues should be easy to remove, leaving no gate marks on the product's appearance and no residual sprue at assembly points.
18. Nitriding Treatment for Hooked Submarine Gates: For hooked submarine gates, both parts of the insert should undergo nitriding treatment to achieve a hardness of HV700.
V. Hot Runner System
1. Wiring Layout: The wiring layout for the hot runner system should be reasonable and easy to inspect, with each wire numbered and correctly matched.
2. Safety Testing: Safety tests should be conducted to prevent electrical leakage and other safety incidents.
3. Customer Requirements Compliance: The temperature control cabinet, hot nozzles, and manifold should meet customer requirements.
4. Sprue Bushing Connection: The main sprue bushing should be connected to the manifold via threading, with a flat bottom surface for sealing and welded around the edges.
5. Manifold Contact with Heating Plates/Elements: The manifold should have good contact with heating plates or elements, secured with screws or studs, ensuring no gaps. The fit between heating rods and the manifold should not exceed 0.05-0.1mm (h7/g6) for easy replacement and maintenance.
6. J-Type Thermocouples: J-type thermocouples should be used and matched with the temperature control instruments.
7. Manifold Blockages: There should be no material retention dead zones at the ends of the manifold, which could lead to material degradation. End plugs should be securely tightened and sealed by welding.
8. Air Insulation Layer: After installing the heating plates on the manifold, the air insulation layer between the heating plate and the mold frame should be within 25-40mm.
9. Temperature Control: Each group of heating elements should be controlled by thermocouples placed in optimal positions for precise temperature control.
10. Hot Nozzle Sealing: Hot nozzles should be tightly fitted with heating rings, with minimal exposed sections at both ends. Cold slug lengths and nozzle dimensions should follow drawings, ensuring proper clearance and sealing segments.
11. Nozzle Outlet Diameter: The nozzle outlet diameter should be less than 5mm to avoid surface shrinkage due to large sprues.
12. Sealing Materials: Copper or aluminum sheets should be used as seals for nozzle heads, protruding 0.5mm above the surface. The inlet diameter of the nozzle head should be larger than the outlet diameter of the manifold to prevent misalignment due to thermal expansion.
13. Manifold Positioning: Reliable positioning mechanisms (at least two locating pins or screws) should be used to account for thermal expansion of the manifold.
14. Insulation Between Manifold and Mold Frame: Insulating materials such as asbestos gaskets or stainless steel should be used between the manifold and mold frame.
15. Spacer Blocks: Spacer blocks should be placed under each hot nozzle to ensure sealing, made from poor heat-conducting stainless steel or insulating ceramic washers.
16. Spacer Block Height: Spacer blocks extending beyond the ejector plate should be 0.3mm higher and positioned within the injection machine's locating circle.
17. Temperature Control Accuracy: The temperature set on the control instrument should match the actual display within ±2°C, with responsive temperature control.
18. Cavity Alignment: Cavities should align with the hot nozzle installation holes.
19. Wiring Bundling: Wiring should be bundled and covered with clamping plates to prevent damage during assembly.
20. Socket Markings: If there are multiple sockets of the same specification, they should be clearly marked to avoid incorrect connections.
21. Control Cable Protection: Control cables should have protective sleeves without damage, typically using cable wires.
22. Temperature Control Cabinet Reliability: The structure of the temperature control cabinet should be reliable, with no loose screws.
23. Socket Placement: Sockets installed on bakelite boards should not exceed the maximum template dimensions.
24. Pin Point Nozzle Protrusion: Pin point nozzles should protrude slightly from the front mold surface.
25. External Wiring: Wires should not be exposed outside the mold.
26. Edge Treatment: All areas where wires contact the manifold or template should have rounded edges to prevent wire damage.
27. Material Selection: Manifolds and nozzles should be made from P20 material.
28. Short Circuit Check: Before assembling the templates, all circuits should be checked for short circuits.
29. Correct Wiring and Insulation: All wires should be correctly connected and insulated.
30. Final Circuit Check: After assembling and tightening the templates, all circuits should be rechecked with a multimeter.
VI. Forming Parts, Parting Lines, Vent Slots
1. Surface Quality: Both front and rear mold surfaces should be free from unevenness, dents, rust, or other defects affecting appearance.
2. Insert Fit: Inserts should fit into the mold frame with a maximum gap of 1mm at the four corners.
3. Clean Parting Lines: Parting lines should be clean and tidy, without hand-held grinding marks, and sealing areas should have no depressions.
4. Vent Slot Depth: Vent slot depths should be less than the flash value of the plastic (PP < 0.03mm, ABS/PS < 0.05mm), machined without manual grinding marks.
5. Insert Fitting: Inserts should be accurately fitted and positioned reliably, tested with different inserts to avoid dimensional errors.
6. Secure Fixation: Inserts and cores should be securely fixed with anti-rotation features. No copper or iron shims should be used; if welding is needed, ensure full contact and grind flat.
7. Front Mold Polishing: Front molds should be polished according to contract requirements.
8. Rib and Core Surface Finish: Ribs and cores on the front and rear molds should be free from spark marks and tool marks, ideally polished. Sleeve pin holes should be honed to remove spark and tool marks.
9. Ejector Pin Alignment: Ejector pin ends should align with the core surface.
10. Angle for Interference Fits: Angled fits should have an angle greater than 2 degrees to prevent burrs, avoiding thin-edge structures.
11. Surface Treatment: The rear mold surface should be smoothed with oilstones to remove tool marks and spark patterns unless these features are specified.
12. Component Numbering: All mold components should be numbered.
13. Defect-Free Molding Areas: Forming areas should be free from undercuts and chamfers.
14. Deep Rib Assembly: Deep ribs (>15mm) should be assembled in sections.
15. Smooth Ejection of Ribs: Ribs should eject smoothly.
16. Symmetry Marking: For symmetrical parts, L or R should be marked (font size 1/8"). Follow customer requirements if specified.
17. Locking Surface Fit: Locking surfaces should have at least 70% contact area.
18. Ejector Pin Placement: Ejector pins should be placed near side walls, ribs, and bosses, using larger pins where necessary.
19. Component Numbering: Identical components should be numbered (e.g., 1, 2, 3) and marked accordingly.
20. Clean Cavities and Parting Lines: Cavities and parting lines should be wiped clean.
21. Insert Placement: Sleeves, ejector pins, and small inserts (<3mm) should be inserted into the front mold.
22. Fitting Accuracy: All fitting surfaces should be precisely matched.
23. Sealing Segment Standards: Sealing segments on parting lines should comply with design standards (10-20mm for medium molds, 30-50mm for large molds, with machining clearance elsewhere).
24. Texture and Sandblasting: Texturing and sandblasting should meet customer requirements.
25. Draft Angle: Draft angles should be 3-5 degrees or greater for deeper textures.
26. Transparent Parts Draft Angle: Transparent parts generally require larger draft angles (PS > 3°, ABS/PC > 2°).
27. Anti-Shrink Measures: Screws on visible parts should have anti-shrink measures.
28. Root Clearances: Holes and cores requiring root clearances should be assembled separately.
29. Sleeve Pins for Deep Screws: Screws deeper than 20mm should use sleeve pins.
30. Chamfer Matching: Chamfers on screws should match corresponding sleeves and inserts.
31. Uniform Wall Thickness: Wall thickness should be uniform within 0.15mm.
32. Rib Width: Rib widths should be no more than 60% of the wall thickness (unless specified otherwise by the customer).
33. Secure Fixation of Cores: Cores on angled ejectors and sliders should be securely fixed (screwed or backed by pins).
34. Interlocking Surfaces: Interlocking surfaces should have chamfers or machining clearance.
35. Strong Ejection for Transparent Materials: Strong ejection structures should be used for transparent PS, AS, PC, PMMA, etc.
36. Material Specifications: Mold materials and their treatment states should meet contract requirements.
37. Marking: Special numbers, date codes, material codes, logos, and trademarks should be marked (date codes as per customer requirements).
38. Directional Marking for Transparent Parts: Directional markings should be correct for transparent parts.
39. Polishing for Transparent Parts: Front and rear molds for transparent parts should be polished to a mirror finish.
VII. Packaging
1. Application of Rust-Preventive Oil: The mold cavities should be sprayed with rust-preventive oil.
2. Grease Application on Sliding Components: Sliding components should be coated with grease (e.g., yellow grease).
3. Sealing of Sprue Bushing Inlet: The inlet of the sprue bushing should be sealed with grease to prevent contamination.
4. Installation of Locking Plates: Locking plates should be installed, meeting the design specifications (for three-plate molds, at least two locking plates should secure the stripper plate to the rear mold).
5. Documentation Completeness: All necessary electronic documents, including product drawings, structural drawings, cooling system diagrams, parts lists, supplier details for mold materials, user manuals, packing lists, and molding conditions, should be complete.
6. Mold Exterior Painting: The exterior of the mold should be painted blue unless otherwise specified by the customer according to contract and technical requirements.
7. Assembly Evaluation of Parts: There should be an assembly evaluation for the molded parts.
8. Surface Defects and Finishing Issues: Ensure that there are no surface defects or finishing issues on the molded parts.
9. Availability of Spare Parts and Accessories: Spare parts, accessories, and consumables should be complete and accompanied by a detailed list, including supplier names.
10. Marketing Department Release Form: A release form from the marketing department should be obtained.
11. Film Packaging for Mold: The mold should be wrapped in protective film.
12. Wooden Crate Labeling: Wooden crates used for packaging should have the mold name and orientation clearly marked using paint.
13. Secure Packaging: The wooden crate should be securely fastened to ensure safe transport.