PU Linings & Rubber Rings
Description
PU Linings & Rubber Rings for CNC Wire Saw Guide Wheels — Wear-Resistant Protection That Extends Machine Life
PU Linings & Rubber Rings are precision custom consumable parts specially designed for CNC gantry wire saw guide wheels. Adopting premium wear-resistant polyurethane material, these accessories effectively isolate diamond wire from direct metal contact, lower wire breakage rates and greatly prolong the overall service life of wire saw equipment. Our standard specifications cover outer diameters of 200mm and 250mm, 30mm thickness and 120mm bore, delivering stable and reliable performance during long-term high-speed continuous cutting. We also support fully customized sizes to match different guide wheel configurations of various machines.

Why the Right PU Ring Matters for Your Wire Saw
Diamond wire is one of the highest-cost consumables in stone processing and cutting work. Without qualified buffer protection from guide wheel rings, direct friction between metal wheels and diamond wire will accelerate wear and tear, cause frequent wire breakage, and continuously increase your overall operating and maintenance costs.
Well-matched polyurethane guide wheel rings can effectively absorb cutting impact and suppress equipment vibration, ensuring stable and smooth wire operation throughout the cutting process. This not only reduces daily diamond wire consumption, but also minimizes unplanned on-site downtime, improving your overall production efficiency.
Key Product Features
Laizhou Jinfuen Machinery’s PU Linings & Rubber Rings are optimized for actual industrial cutting scenarios, with multiple reliable performance advantages:
High-Elasticity Polyurethane Construction We adopt high-quality wear-resistant polyurethane material instead of ordinary industrial rubber. The optimized material formula features excellent elasticity and tensile strength, which can stably maintain the original shape and structural performance under long-term continuous mechanical stress and friction.
Tight-Fitting Anti-Slip Structure Strict dimensional tolerance control ensures a tight press-fit installation on guide wheel hubs. Even under long-term high-speed rotation, the ring can stay fixed in position without slipping or offsetting, guaranteeing stable operation and production safety.
Anti-Aging and Oil-Resistant Properties Polyurethane material comes with natural oil resistance, moisture resistance and chemical corrosion resistance. It adapts perfectly to complex wet cutting environments with long-term water jet flushing and stone slurry erosion, effectively delaying product aging.
Noise Reduction The elastic buffer layer between the metal hub and diamond wire effectively absorbs mechanical vibration generated during cutting, significantly reducing equipment operating noise and improving the on-site working environment of workshops and quarries.

Technical Specifications
|
|
169*73.85*24.7 | 0.511 |
|
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183*75*40 | 0.8 |
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200*120*33 | 0.568 |
| 200*120*35.5 | 0.6 | |
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298*259*30 | 0.6 |
| 297.5*258.5*30.5 | 0.68 | |
| 300*240*26.7 | 0.91 | |
| 310*262*27.6 | 0.77 | |
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330*204*33 | 2.2 |
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403*347.6*17.2 | 0.8 |
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490*460*30 | 1.63 |
Application Scenarios
Our durable PU Linings & Rubber Rings fit a wide range of high-intensity stone processing and engineering cutting scenarios with stable and consistent performance:
Granite and Marble Quarrying In open-pit quarry production, the rings withstand harsh working conditions including high-pressure water impact, long-term UV exposure and continuous abrasive friction from rock dust. The premium PU material effectively resists cracking and deformation, adapting to multi-shift uninterrupted production.
CNC Gantry Wire Saw Machines Compatible with most mainstream CNC gantry wire saw models, the product acts as the core buffer between guide wheels and diamond wire loops, playing a decisive role in stabilizing cutting accuracy and extending diamond wire service life.
Reinforced Concrete and Engineering Cutting In engineering demolition and concrete cutting projects, diamond wire often bears irregular impact resistance from steel bars and aggregate. The elastic PU buffer layer can effectively absorb shock pressure and protect both diamond wire and wheel bearings from fatigue damage.

Quality Control Standards
We implement strict full-process quality inspection for every batch of products to ensure stable field performance. All PU Linings & Rubber Rings undergo the following professional testing procedures before delivery:
Shore A Hardness Testing: Multiple sampling tests are carried out on the ring circumference to ensure uniform overall hardness and consistent elastic buffer effect, maintaining stable wire contact pressure.
Dimensional Tolerance Check: Precisely detect outer diameter, inner bore and thickness to ensure full compliance with standard specifications and perfect fitting with guide wheel hubs.
Abrasion Resistance Evaluation: Tested in accordance with DIN 53516 industry standards to quantify friction volume loss and verify long-term wear resistance and durability.
Visual and Surface Inspection: Full surface inspection to eliminate pores, inclusions and other defects, avoiding local stress concentration and premature product failure.

B2B Purchasing Advantages
Purchasing directly from Laizhou Jinfuen Machinery brings you cost-effective and reliable supply chain advantages:
Factory direct sales eliminate all intermediate distributor markups to reduce your procurement costs; customized sizes are available to match your unique guide wheel parameters; in-house production and complete testing systems guarantee stable batch quality; all products are highly compatible with Jinfuen’s full range of wire saw accessories including guide wheels, tension wheels and flywheels.
We support both small trial orders and long-term bulk procurement, with stable and controllable lead times to meet your diverse production scheduling needs.
Frequently Asked Questions
Q1: What are the available sizes for this PU guide wheel ring
A1: Main sizes: diameter 200 mm / 250 mm, thickness 30 mm, bore 120 mm. Custom sizes are acceptable upon request.
Q2: How long is the normal service life of the polyurethane ring?
A2: Under standard stone‑cutting working conditions, it can work for several hundred hours. Service life varies with raw stone hardness and operating tension.
Q3: Can this part fit other brands of gantry wire‑saw machines?
A3: It fits most domestic CNC gantry wire‑saw models with matching inner‑hole dimension. Please confirm your wheel size before ordering.
Contact Us
If you need standard or custom-spec PU Linings & Rubber Rings for your CNC wire saw machines, feel free to contact our professional sales team at sales@goldfenwiresaw.com. We will provide accurate product specifications and competitive factory pricing for your project.
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