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Phenolic Fabric Guide Strip Roll for Piston & Rod Directional Support
Category：Guide Strip
Material: Phenolic fabric
Temperature: -50℃ ~ +130℃
Color: Blue
Product description: A non-sealing component for axial guiding and lateral load bearing of hydraulic/pneumatic cylinders during reciprocating motion. Supplied in roll form for on-site cutting and installation into grooves to form integral guide rings.
Temperature: -50℃ ~ +130℃
Color: Blue
Product description: A non-sealing component for axial guiding and lateral load bearing of hydraulic/pneumatic cylinders during reciprocating motion. Supplied in roll form for on-site cutting and installation into grooves to form integral guide rings.
5.0
design customization
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1. Definition & Alias
Official Name: Guide Strip
Common Aliases: Wear Strip, Guide Tape, Guide Ring Strip
Function Positioning: A non-sealing component for axial guiding and lateral load bearing of hydraulic/pneumatic cylinders during reciprocating motion. Supplied in roll form for on-site cutting and installation into grooves to form integral guide rings.
2. Core Functions
- Prevent Direct Metal-to-Metal Friction Isolate contact between piston & cylinder barrel, rod & guide bush to avoid metal scratching. Prevent abrasive metal debris from damaging main seals and early hydraulic cylinder leakage.
- Bear Lateral Load & Maintain Coaxiality Disperse radial force caused by eccentricity and side load, ensure linear movement of piston and piston rod to eliminate shaking, vibration and crawling noise.
- Contain Foreign Particles for Protection Capture tiny solid contaminants to avoid seal damage caused by hard particle extrusion; buffer hydraulic shock and reduce operating noise.
- Eliminate Low-Speed Crawling Ultra-low friction coefficient for PTFE-based materials effectively solves stuttering crawling under low-speed cylinder operation.
3. Main Material Grades, Performance & Application Selection
| Material Grade | Key Advantages | Operating Temperature | Max Linear Speed | Load Capacity | Typical Application |
|---|---|---|---|---|---|
| Bronze Filled PTFE | Excellent wear resistance, high thermal conductivity, anti-creep, cost-effective | -60℃ ~ +260℃ | ≤15m/s | Medium-High Load | Construction machinery, hydraulic cylinders, injection molding machines, high-pressure cylinders (universal mainstream grade) |
| Carbon/Graphite Filled PTFE | Anti-static, superior heat dissipation, high-speed wear resistance | -60℃ ~ +250℃ | High-speed operation | Medium Load | High-speed cylinders, servo cylinders, explosion-proof static-sensitive equipment |
| Glass Fiber Filled PTFE | Low cost, stable dimensional stability | -55℃ ~ +220℃ | ≤3m/s | Medium Load | General pneumatic cylinders, low-pressure hydraulic equipment |
| Phenolic Fabric (PF) | Ultra-heavy load resistance, self-lubricating & oil absorption, extreme pressure resistance | -50℃ ~ +130℃ | ≤0.5m/s | Heavy/Extra-Heavy Load | Mining equipment, heavy-duty low-speed cylinders, forbidden for high-speed use |
| POM | High rigidity, competitive cost | -40℃ ~ +120℃ | ≤1m/s | Light-Medium Load | Pneumatic cylinders, small low-pressure cylinders, automation equipment |
| PA Nylon | Good toughness, impact resistance | -30℃ ~ +100℃ | ≤1m/s | Light Load | Light pneumatic components, normal-temperature cost-down projects |
| Carbon Fiber Reinforced PEEK | High temperature resistance, strong chemical corrosion resistance, ultra-high mechanical strength | -50℃ ~ +280℃ | Medium-High Speed | Extra-High Load | LNG cryogenic equipment, chemical corrosive environment, military equipment, high-temperature special hydraulic cylinders |
4. Standard Structure & Dimension Parameters
4.1 Cross-section Profile
Standard rectangular cross-section
Standard Thickness: 1.0mm /1.5mm /2.0mm /2.5mm /3.0mm
Standard Width: 5/8/10/12/15/20/25/30mm (custom size available)
Standard Roll Length: 25m / 50m / 100m, cut on-site according to cylinder diameter for split guide ring assembly.
4.2 Cutting Length Calculation Formula
- For Piston Guide Strip \(L=π×(Cylinder\;Bore\;Diameter\;D−Groove\;Depth\;H)−Overlap\;Gap\;G\)
- For Rod Guide Strip \(L=π×(Rod\;Diameter\;d+Groove\;Depth\;H)−Overlap\;Gap\;G\) Recommended gap G: 0.3~0.5mm, flat butt joint without overlapping.
4.3 Groove Design Rules
- Rod guide strip width ≥ 0.2 × Rod Diameter
- Piston guide strip width ≥ 0.1 × Piston Diameter
- Avoid excessive width (no larger than cylinder diameter); strip thickness ≥ 4× groove depth to guarantee supporting rigidity.
5. Installation Instructions
- Chamfer and deburr all groove edges; sharp corners will tear the guide strip.
- Coat hydraulic oil on grooves and guide strips for lubrication before assembly.
- Place the strip split joint away from the maximum lateral force bearing area of the cylinder.
- Do not twist or stretch the guide strip forcibly during installation.
- Adopt 30° diagonal cut for large-diameter cylinders for easier assembly.
6. Application Industries
- Hydraulic System: Excavators, loaders, truck cranes, shield machines, injection molding machine cylinders, metallurgical heavy cylinders, high-pressure hydraulic cylinders
- Pneumatic Equipment: Air cylinders, automation sliding tables, robotic arms
- Special Working Conditions: LNG cryogenic facilities, anti-corrosion chemical equipment, high-temperature hydraulic systems, machine tool guide soft strips, conveyor wear-resistant sliding strips
7. Famous Brand Reference
- SKF: RGR rod guide ring, PGR piston guide ring, SB series PTFE guide strip rolls
- Trelleborg Slydring wear-resistant guide strip
- Hallite, SOG, NOK matched guide strips
- Domestic Products: Filled PTFE guide strip, phenolic fabric guide ring rolls
8. Key Distinction: Guide Strip VS Backup Ring
- Guide Strip: Undertake radial support, guiding and wear resistance, no anti-extrusion function.
- Backup Ring: Matched with O-ring / Step Seal to prevent seal extrusion under high pressure; no guiding or load-bearing performance.
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