Logistics Dunnage Blow-Molded One-Piece Double-Face Pallet Mold — Product Introduction (Motek Pallet Mold Series)
Logistics Dunnage Blow-Molded One-Piece Double-Face Pallet Mold — Product Introduction (Motek Pallet Mold Series)
Product Positioning
Motek introduces dedicated blow-molded one-piece double-face pallet mold solutions for logistics dunnage and warehouse stacking applications. Double-face blow-molded pallets feature flat or grid decks on both the top and bottom surfaces, formed integrally through the hollow blow molding process. They combine dual-side usability/interchangeability, high impact resistance, and moisture-proof dunnage functions, making them widely used in warehousing logistics, cold-chain transportation, racking storage, and export turnover. Compared with single-face nine-leg pallet molds, the core challenges of double-face blow molds lie in synchronous forming of the upper and lower double-face structures with wall thickness uniformity control, load-bearing consistency for dual-side use, and cooling efficiency and mold clamping precision of the double-face cavities in the blow molding process. Motek configures dedicated solutions around the double-face cavity layout, blow pin positions, and cooling systems, helping customers achieve stable mass production of double-face blow-molded pallets.
Core Specifications
| Item | Specification |
|---|---|
| Applicable Plastics | HDPE (High-Density Polyethylene, preferred for double-face blow-molded pallets, low-temperature resistant, impact-resistant) |
| Mold Material | P20 / 718H (pre-hardened steel) for cavity and core; surface hardness up to HV800–1000 after nitriding; S136 optional for high-volume production |
| Number of Cavities | 1×1 (single cavity for large double-face blow-molded parts) |
| Mold Life | 500,000+ shots (S136 configuration) |
| Molding Process | Hollow blow molding (extrusion blow molding), parison inflation for synchronous double-face forming |
| Load Capacity Reference | Depends on specific size and wall thickness design (large sizes typically achieve dynamic loads of 1.5 to 2+ tons) |
| Cooling System | Double-face zoned circulating water channels + dedicated cooling layout for blow molds |
| Demolding Method | Mold opens for removal, synchronous double-face demolding |
Product Features
Synchronous Forming and Wall Thickness Uniformity Control of Double-Face Structures.
Both the upper and lower surfaces of a double-face blow-molded pallet are functional surfaces. During blow molding, the parison must be uniformly inflated between the upper and lower cavities. Motek optimizes parison dimensions and blow ratios to ensure even material distribution across the upper and lower decks, peripheral side walls, and internal support ribs. Wall thickness uniformity of the double-face structure directly affects the load-bearing consistency and service life of dual-side use. Motek evaluates wall thickness distribution across regions through blow molding simulation to prevent load capacity reduction caused by an overly thin single face.
Mold Clamping Precision and Appearance Consistency of Double-Face Cavities.
The upper and lower cavities of a double-face blow mold must be precisely aligned; otherwise, the pallet faces will misalign or have uneven thickness. Motek adopts high-precision guide pin and guide bushing fit to ensure accurate upper-lower cavity alignment during mold closing. Parting line positions are optimized to be placed at pallet edges or non-contact areas wherever possible to reduce subsequent trimming processes. For double-face grid or anti-slip textures, the texture depth and layout of upper and lower cavities are subject to consistency control to ensure coordinated double-face appearance.
Blow Pin Position and Double-Face Air Intake System Design.
The blow molding process injects compressed air into the parison through blow pins to conform the material to the upper and lower mold walls. Motek reasonably selects blow pin positions (typically at the pallet center or non-appearance areas) based on the structural characteristics of double-face pallets, ensuring even air distribution to both upper and lower faces and peripheral corners. Blow pin positions must avoid double-face appearance surfaces and critical load-bearing areas while facilitating subsequent trimming. For double-face pallets, air intake pressure control must balance simultaneous wall contact on both faces, preventing premature contact on one face that leads to insufficient filling on the other.
Cooling Efficiency of Large-Size Molds and Double-Face Cycle Time Optimization.
For large-size double-face pallets ranging from 1200×1000 to 1600×1400, cooling time accounts for the major portion of the cycle, and both upper and lower faces must cool synchronously to avoid warpage caused by temperature differences. Motek designs zoned circulating cooling water channels separately in the upper and lower cavities, focusing on thick-wall deck regions and peripheral connection areas. The cooling layout balances cooling uniformity of both faces, preventing overall pallet deformation caused by one face cooling too fast or too slow.
Load-Bearing and Impact-Resistant Design for Dual-Side Use.
Double-face blow-molded pallets absorb impact energy through their hollow structure, making them suitable for dunnage, stacking, and forklift operations. Motek coordinates with product structure in mold design, ensuring sufficient material thickness at connection areas between upper/lower decks and internal support ribs to enhance connection strength. The double-face structure allows the pallet to function normally regardless of which side faces up, making it suitable for warehousing scenarios requiring frequent flipping or dual-side load-bearing. The blow molding process uses HMWHDPE raw material, offering excellent impact resistance and low-temperature performance, suitable for cold-chain environments.
Anti-Slip Texture and Surface Feature Customization.
Blow-molded pallet surfaces typically feature anti-slip patterns to increase deck friction and prevent cargo from slipping during handling. Motek etches anti-slip textures on cavity surfaces, with texture depth and spacing design-verified to balance slip resistance with easy cleaning. Molds support surface feature customization such as brand logos and QR codes to meet customer product traceability and brand display requirements.
Standard Large-Size Specification Series Reference
Based on the product size list provided by the customer, Motek can provide dedicated mold design and development for the following large-size double-face blow-molded pallet specifications (covering square and extended-length types):
| Pallet Size (mm) | Structure Type | Typical Application & Features |
|---|---|---|
| 1200×1000×150 | Standard Double-Face | General warehousing logistics, the most mainstream dunnage pallet specification |
| 1100×1100×150 | Standard Double-Face | Fits square spaces, four-way entry |
| 1200×1200×150 | High-Load Double-Face | Suitable for heavy cargo stacking and large-area dunnage |
| 1300×1100×150 | Enlarged Double-Face | Increases single-load capacity, suitable for logistics consolidation |
| 1400×1200×150 | Large Double-Face | Suitable for warehousing of large equipment, home appliances, etc. |
| 1400×1400×150 | Extra-Large Square Double-Face | High load-bearing demand, suitable for intensive stacking |
| 1500×1200×150 | Extended-Length Double-Face | Suitable for long or combined cargo |
| 1500×1300×150 | Widened & Extended Double-Face | Dedicated for special equipment or large cargo logistics |
| 1600×1400×150 | Extra-Large Double-Face | Industrial-grade heavy load, suitable for high-intensity logistics turnover |
Note: Large-size blow molds place higher demands on the clamping force, platen dimensions, and extruder capacity of injection/blow molding machines. Motek will customize and match the mold based on your equipment parameters during the mold design phase.
Applications
Motek logistics dunnage blow-molded one-piece double-face pallet molds are suitable for:
- Double-face blow-molded dunnage pallets for warehousing and logistics
- Double-face blow-molded pallets for cold-chain/freezer storage (HDPE low-temperature resistant)
- Double-face blow-molded plastic pallets for export transport
- Double-face blow-molded pallets for racking storage (rack load capacity evaluation required)
- Four-way/two-way entry double-face blow-molded pallets
Service Process
After the customer provides 3D product drawings, load requirements (dynamic/static/rack load), specific size specifications (refer to the list above), and blow molding machine model, Motek completes blow molding simulation (including parison size evaluation, double-face wall thickness distribution prediction, and cooling optimization) and mold structure confirmation; cavity steel is selected per blow molding process requirements (P20/718H/S136); progress and key milestones are regularly reported during processing. During trial molding, Motek cooperates with the customer's blow molding machine for parison adjustment, inflation parameter optimization, and double-face wall thickness inspection, with emphasis on verifying double-face forming completeness, wall thickness uniformity, parting line quality, and pallet flatness. Before shipment, molds undergo anti-rust treatment and action testing, with water circuit diagrams, consumable parts lists, and blow molding process parameter recommendations provided. Technical support is available during the warranty period, with lifetime maintenance consultation.
Motek — From single-face nine-leg pallets to double-face blow-molded dunnage pallets, supporting full-size series customization, providing reliable mold solutions for blow molding of logistics and warehousing plastic pallets.
