HDPE (High-Density Polyethylene)

HDPE (High-Density Polyethylene) is a rugged, cost-effective thermoplastic known for its high impact strength, excellent moisture resistance, and FDA compliance. It is the premier material for "wear and tear" applications, such as guide rails and food-cutting surfaces. At Jucheng Precision, we leverage the high machinability of HDPE to deliver large-scale components with rapid turnaround. Despite its waxy surface, our advanced CNC milling ensures smooth finishes and precise hole alignments for industrial liners and rollers. We specialize in producing FDA-compliant parts for the food industry and corrosion-resistant components for the marine and chemical sectors, providing a durable solution that survives the toughest environments.

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Available HDPE Variants

グレード	一般名	主な特性	代表的な用途
Virgin HDPE	Natural HDPE	Pure white, FDA/USDA compliant. Best for food and medical use.	Cutting boards, lab equipment, medical containers.
Black HDPE	UV Stabilized	Added carbon black for excellent outdoor weather resistance.	Marine fittings, outdoor signage, agricultural parts.
HMWPE / UHMWPE	Ultra-High Molecular Weight	Even higher wear resistance and lower friction than standard HDPE.	Guide rails, conveyor wear strips, star wheels.

HDPE Machining Capabilities

能力	技術的説明	Juchengの強み
Large-Format Milling	Milling oversized wear plates and liners from thick HDPE slabs.	Our large-travel gantry mills handle parts up to 2 meters with uniform thickness and flat surfaces.
高速旋削	Rapid production of industrial rollers, spacers, and pulleys using bar-fed lathes.	Offers extremely competitive unit pricing for high-volume industrial hardware.
Complex 3-Axis Routing	Cutting intricate silhouettes and hole patterns for food-processing components.	We achieve clean, burr-free edges, ensuring no plastic contamination in food-grade environments.

Fabrication Guidelines for HDPE

Expansion Awareness: HDPE has a high thermal expansion. ヒント: We maintain stable workshop temperatures to ensure that large plates don’t “bow” or change size during the cut.

Sharp Tooling: HDPE is soft but tough. Blunt tools will “smear” the plastic. ヒント: We use ultra-sharp tools with high relief angles to achieve a smooth, professional matte finish.

Workholding: The waxy surface is slippery. We use specialized high-grip soft jaws or vacuum tables to ensure the part doesn’t shift under heavy milling loads.

Primary Application Industries

Food Processing: FDA-compliant cutting boards, sliding guides, and star wheels for bottling lines.

Marine Industry: UV-resistant storage boxes, seat frames, and decorative trim that won’t rot or corrode.

Material Handling: Wear strips, guide rails, and chute liners for high-speed conveyor systems.

Material Properties

密度	0.94 - 0.97 g/cm³
引張強度	20 - 35 MPa
Elastic Modulus	0.8 - 1.2 GPa
硬さ	60 - 70 HRB
連続使用温度	70 - 80 °C
吸水率	< 0.01 %
衝撃強度	100 - 200 J/m
最大部品サイズ	2000 x 800 x 600 mm