Product Overview

CNC turning rubber seals are new generation non-mold precision customized sealing parts, with a production process completely different from traditional molded vulcanized rubber seals. Made of high-purity German Bayer imported raw materials, the rubber is melted at high temperature and extruded into high-quality cylindrical blanks under high pressure. Then processed by Austrian DMH imported professional CNC turning equipment with programmed precise data for one-time finishing forming. No mold required, no restrictions on specifications, sizes, sections and quantities. Standard parts, non-standard special-shaped parts, large-diameter seals and special tolerance seals can be customized quickly. It effectively solves industry pain points such as high mold cost, long waiting time, size mismatch and sealing leakage during equipment maintenance and supporting. Featuring high precision, stable sealing performance and long service life, it adapts to various harsh working conditions in national defense and civil industries.

Production Equipment & Raw Material Guarantee

Equipment Strength: Fully imported Austrian DMH professional CNC turning equipment specially developed for precision rubber seal processing, with high machining accuracy, smooth cutting surface and strict tolerance control, ensuring tight fitting and zero leakage.

Raw Material Quality: Adopt original German Bayer imported rubber materials, mainly high-quality nitrile rubber, and support customization of FKM, EPDM, acrylate rubber, vinylidene fluoride copolymer elastomer and other materials. High purity without recycled materials, stable physical performance, oil resistance, high temperature resistance and aging resistance, ensuring overall sealing quality and long service life.

Turning Process Principle

The imported rubber raw materials are melted at high temperature and extruded into cylindrical blanks with dense internal molecular structure and better toughness and mechanical performance than ordinary molded products. According to customer drawings, sizes and section styles, CNC parameters are programmed for direct precision turning forming without secondary vulcanization. The production process is simple and efficient, meeting all personalized sealing customization requirements.

Four Core Advantages of Turning Process

1. Better Material Performance: High-pressure extruded blanks with dense internal molecular structure, excellent mechanical properties, tensile resistance, extrusion resistance and deformation resistance, no aging or cracking during long-term use.

2. Higher Dimensional Accuracy: CNC precision turning with small tolerance and high surface smoothness, flat sealing contact surface for tighter fitting and no hydraulic leakage.

3. Faster Production & Delivery: No mold or vulcanization required, single piece processing only about 30 seconds, shortening production cycle and supporting urgent orders for quick equipment maintenance.

4. Wider Customization Range: No mold, standard or size limit, maximum diameter up to 4000mm. Thickness and tolerance can be adjusted according to cylinder wear for personalized and suitable sealing products.

Main Materials & Product Features

Mainly made of nitrile rubber, with optional vinylidene fluoride and fluorine copolymer elastomer materials. Excellent comprehensive performance: high temperature resistance, ozone aging resistance, natural weather aging resistance, vacuum resistance, fuel oil resistance, lubricating oil resistance, strong oxidant resistance, chemical resistance and good electrical insulation. Stable sealing performance under alternating high and low temperature, high oil pressure, strong corrosion and high vibration working conditions, no swelling, no hardening and long service life.

Application Scope

Widely used in national defense military industry, construction machinery, hydraulic cylinders, mining machinery, metallurgical equipment, automobile manufacturing, chemical equipment and general civil machinery. Suitable for piston sealing, shaft sealing, dust sealing, fixed sealing and reciprocating motion sealing. Ideal for equipment maintenance replacement, original supporting, non-standard customization and large-size sealing renovation.

Factory Supply & Customization Advantages

Professional direct manufacturer with dual quality control of imported equipment and imported raw materials. Sufficient stock for standard specifications, fast customization for non-standard special-shaped parts, small order acceptable without mold cost. All products are strictly inspected for precision, appearance and sealing performance. Support drawing customization, sample processing and special tolerance adjustment. Professional technical guidance and stable long-term supply, providing one-stop high-precision non-standard sealing solutions.