Hydraulic Hose Protection Sleeve
Convex Spiral Hose Guard
Engineered with a heavy-duty rounded convex profile, our cambered spiral hose guard provides superior impact dampening and dynamic flexibility for hydraulic and pneumatic hoses.
Quick Specifications
| Inner Diameter Range | 8 mm to 200 mm (Customizable) |
|---|---|
| Material Grade | High-Density Polyethylene (HDPE) / Modified Polypropylene (PP) |
| Surface Profile | Convex / Cambered Profile (Domed Outer Surface for Extra Cushioning) |
| Working Temperature | -40°C to +120°C (-40°F to +248°F) |
| Impact Resistance | Enhanced Absorptive Cushioning via Domed Wall Structure |
| Color Options | Black, Blue, Red, White, Yellow, Green (Custom options available) |
SAE / DIN / EN Standards
100% Proof Tested
OEM Branding Available
MOQ Flexible
Overview
Product Overview
The Convex Spiral Hose Guard by Quanyi Rubber is an advanced protective sleeve designed specifically for high-flexing hydraulic assemblies and severe-duty machinery applications. Featuring a specialized cambered (domed convex) surface design, this protective guard provides a thicker central wall buffer that effectively absorbs external impact energy, heavy friction, and ground dragging forces better than standard flat wraps.
Manufactured from high-strength modified High-Density Polyethylene (HDPE) or Polypropylene (PP), the rounded exterior profile enhances hose assembly flexibility around tight machine joints, preventing binding while maintaining continuous line coverage. It forms an impenetrable defense shield around hydraulic lines, shielding them from sharp rock impacts, metal frame friction, UV degradation, and chemical splatters.
With an expansive working temperature tolerance of -40°C to +120°C, the convex guard remains resilient and crack-resistant under cryogenic cold or scorching ambient heat. The open-helical construction allows technicians to perform quick, tool-free retrofit installations directly over existing single hoses or multi-hose bundles without taking systems offline. Available in multiple high-visibility colors (Black, Blue, Red, White, Yellow), Quanyi convex spiral guards deliver professional cable grouping, enhanced site safety, and extended hose service life.
| Size | ID (mm) | OD (mm) | Wall Thickness (mm) | Width (mm) |
| 8 | 8 | 11 | 1.5 | 10 |
| 10 | 10 | 12.8 | 1.4 | 11 |
| 12 | 12 | 15 | 1.5 | 12 |
| 14 | 14 | 17 | 1.5 | 13 |
| 16 | 16 | 19.6 | 1.8 | 15 |
| 18 | 18 | 21.6 | 1.8 | 16 |
| 20 | 20 | 24 | 2 | 18 |
| 21 | 21 | 25 | 2 | 18 |
| 22 | 22 | 26 | 2 | 18 |
| 23 | 23 | 27 | 2 | 19.2 |
| 24 | 24 | 28 | 2 | 21 |
| 25 | 25 | 29.8 | 2.4 | 21.5 |
| 28 | 28 | 33.2 | 2.6 | 23 |
| 30 | 30 | 34.8 | 2.4 | 22.5 |
| 32 | 32 | 37.6 | 2.8 | 23 |
| 35 | 35 | 40.6 | 2.8 | 24 |
| 38 | 38 | 44 | 3 | 25 |
| 40 | 40 | 47 | 3.5 | 27 |
| 42 | 42 | 49 | 3.5 | 25 |
| 45 | 45 | 53 | 4 | 28 |
| 48 | 48 | 56 | 4 | 28 |
| 50 | 50 | 59 | 4.5 | 29 |
| 52 | 52 | 61 | 4.5 | 29 |
| 55 | 55 | 64 | 4.5 | 30 |
| 60 | 60 | 69 | 4.5 | 30 |
| 63 | 63 | 72 | 4.5 | 30 |
| 65 | 65 | 74 | 4.5 | 30 |
| 67 | 67 | 76 | 4.5 | 30 |
| 70 | 70 | 79 | 4.5 | 34 |
| 74 | 74 | 84 | 5 | 34 |
| 75 | 75 | 85 | 5 | 42 |
| 80 | 80 | 91 | 5.5 | 45 |
| 88 | 88 | 99 | 5.5 | 45 |
| 90 | 90 | 101 | 5.5 | 45 |
| 100 | 100 | 112 | 6 | 50 |
| 150 | 150 | 162 | 6 | 38 |
| 200 | 200 | 210 | 5 | 50 |
Key Features
Key Features
- Cambered convex profile creates a thicker protective dome for maximum impact absorption
- Specially formulated HDPE/PP material retains high toughness without cold brittleness at -40°C
- Domed outer geometry reduces bending resistance and prevents hose binding during operation
- Spiral wrapped design enables fast on-site retrofitting without dismantling hose fittings
- Shields hydraulic hoses against sharp gravel, metal chassis rubbing, and constant dragging
- High resistance to sunlight UV radiation, ozone aging, and industrial fluid splatters
- Multiple vibrant colors (Red, Blue, White, Black) allow easy circuit identification and safety coding
Structure
Hose Structure
Core Body: Extruded helical cambered (domed) polyethylene/polypropylene profile
Inner Wall: Smooth, non-abrasive interior surface for effortless hose longitudinal movement
Edge Finish: Precision-rounded bevel edges to eliminate sleeve cutting into hose covers
Applications
Applications
Dynamic Hydraulic Lines on Articulated Loaders, Excavators, and Cranes
Forestry Harvesters, Log Skidders, and High-Flexing Boom Assemblies
Heavy Mining Shovels, Underground Tunneling, and Rock Drilling Rigs
Pneumatic and Hydraulic Lines on Agricultural Tractors and Implements
Industrial Machinery Line Bundling and Electrical Cable Harness Management
Offshore Rig Hydraulics, Dredging Lines, and Marine Port Equipment
Advantages
Why Choose This Product
Convex shape provides superior dampening against heavy mechanical shocks compared to flat profiles
Enhanced flexibility around tight bend radii reduces stress on both the hose and protective sleeve
Minimizes machinery downtime and extends expensive hydraulic hose lifespans significantly
Retrofit spiral installation allows immediate field maintenance without draining hydraulic oil
Wide color range simplifies multi-line hydraulic routing and system troubleshooting
Technical Data
Technical Specifications
| Inner Diameter Range | 8 mm to 200 mm (Customizable) |
|---|---|
| Material Grade | High-Density Polyethylene (HDPE) / Modified Polypropylene (PP) |
| Surface Profile | Convex / Cambered Profile (Domed Outer Surface for Extra Cushioning) |
| Working Temperature | -40°C to +120°C (-40°F to +248°F) |
| Impact Resistance | Enhanced Absorptive Cushioning via Domed Wall Structure |
| Color Options | Black, Blue, Red, White, Yellow, Green (Custom options available) |
| Chemical & Environmental | Resistant to UV, Ozone, Hydraulic Oils, Acids, and Alkalis |
| Installation Method | Tool-Free Spiral Wrap (Retrofit without Line Disconnection) |
| Standard Coil Lengths | 2 m, 10 m, 20 m, 50 m per coil (Customizable) |
FAQ
Frequently Asked Questions
What is the primary difference between a convex spiral guard and a flat spiral guard?
The convex profile features a domed outer wall that provides thicker impact dampening and smoother bending flexibility around tight machinery joints, whereas flat guards offer a sleeker flush profile.
Can the convex spiral sleeve withstand sub-zero winter temperatures?
Yes, engineered with high-density HDPE/PP compounds, it maintains high impact strength and flexibility from -40°C up to +120°C.
Is it necessary to disconnect the hydraulic hose to install this sleeve?
No, the helical spiral wrap design allows you to quickly wind the guard over pre-connected hoses without disconnecting fittings.
Does the domed surface affect hose bending radius?
The convex curvature actually improves flexing ergonomics, allowing hydraulic hose assemblies to bend freely without kinking or binding.
Are custom diameters, wall thicknesses, and colors available?
Yes, we manufacture inner diameters from 8mm to 200mm in standard or custom colors (Black, Red, Blue, White, Yellow) and cut lengths.
Related
Related Products
Request a Quote
Get a Quotation for Convex Spiral Hose Guard
Send us your specifications - size, length, pressure rating, quantity and destination port. Our sales engineer will respond within 4 business hours with a quotation, datasheet and lead time.