GUANGZHOU GUOMAT AIR SPRING CO. , LTD
| Payment Terms | L/C, D/A, D/P, Western Union |
| Supply Ability | 1000PCS/Week |
| Delivery Time | 5-8 Working Days |
| Packaging Details | Strong Carton Box or as Customers Requirement |
| Function | Reduce Vibration |
| MOQ | 4PCS |
| Type | Flange Connection Type |
| OEM | Firestone W01-358-7203 |
| Color | Black |
| Shape | Double Convoluted Air Spring |
| Warranty | 12 Months |
| Quality | Good Quality |
| Brand Name | GUOMAT |
| Model Number | 2H520217 |
| Certification | ISO/TS16949, ISO9001 |
| Place of Origin | Guangdong, China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, Western Union | Supply Ability | 1000PCS/Week |
| Delivery Time | 5-8 Working Days | Packaging Details | Strong Carton Box or as Customers Requirement |
| Function | Reduce Vibration | MOQ | 4PCS |
| Type | Flange Connection Type | OEM | Firestone W01-358-7203 |
| Color | Black | Shape | Double Convoluted Air Spring |
| Warranty | 12 Months | Quality | Good Quality |
| Brand Name | GUOMAT | Model Number | 2H520217 |
| Certification | ISO/TS16949, ISO9001 | Place of Origin | Guangdong, China |
| High Light | Industrial air spring rubber bellows ，Firestone style 29 air actuator ，Industrial air spring with warranty | ||
| Project | Description |
|---|---|
| Brand | GUOMAT |
| Model | 2H520217 |
| Material | Premium rubber and reinforced steel: Rubber components offer excellent flexibility and fatigue resistance; metal components are rust-proofed for long service life. |
| Structure Type | Double Convoluted |
| Warranty | 1 year: We provide a solid guarantee for product quality. |
| Packaging | Standard brown cardboard box: Ensures good protection of the product during transportation; neat packaging. |
| Minimum Order Quantity | 4 pieces |
Manufacturer: FIRESTONE
Style Number: 29
Part Number: W01-358-7203
Manufacturer: FIRESTONE
Style Number: 29
Part Number: W01 358 7203
Manufacturer: FIRESTONE
Style Number: 29
Part Number: W013587203
Detailed Mounting & Dimensional Specifications
1. Mounting Interface
Flange Diameter: 20.36 inches – defines the overall width of the sealing and contact surface.
Bolt Pattern (Bolt Circle Diameter): 19.00 inches – specifies the circular arrangement of the mounting bolts for alignment.
Bolting Configuration: 24 units of 3/8-24 UNF threaded fasteners – indicates the quantity and standard thread type for secure attachment.
2. Envelope & Operational Range
Maximum Housing Diameter: 22.7 inches – the greatest outer width, important for spatial clearance during installation.
Nominal Installed Height: 9.5 inches – the reference height under standard assembly conditions.
Usable Stroke Range: 3.3 to 13.0 inches – the approved vertical displacement between fully compressed and fully extended positions.
| Step | Key Operation | Technical Points & Illustration Notes |
| 1. Positioning | Place the air spring between the upper die holder and the press frame top plate at the designated mounting location. | Alignment Requirement: The central axis of the spring must align with the press ram centerline, with a permissible deviation ≤ 0.2°. Diagram should indicate measurement points. |
| 2. Bolt Pre-tightening | Insert bolts (e.g., 24 pieces of Grade 8.8 or higher) through the spring flange holes (e.g., 24×φ9.5mm) and into the frame's threaded holes. Tighten in stages. | Tightening Sequence: Follow a cross-diagonal pattern in two stages (first 50% torque, then 100% final torque). Torque value must comply with bolt specification (e.g., for 3/8-24 UNF, suggested torque is 28-32 N·m). |
| 3. Pneumatic Connection | Connect the factory air supply line to the spring's inlet port via a filter regulator. Recommend using PT thread sealing. | Pressure Setting: Initial pressure should be set at 50% of the nominal working pressure (e.g., if working pressure is 8 bar, start at 4 bar), then fine-tune according to load. |
| 4. Stroke Calibration | Jog the press manually and measure the actual extension/compression range of the spring. | Stroke Protection: Ensure the spring's stroke always remains within the specified range (e.g., 3.3-13 inches). This can be achieved by adjusting the frame's limit bolts. |
| 5. Seal Verification | Pressurize the spring to 1.2 times the working pressure and hold for 15 minutes. | Leak Test Method: Apply soap solution to the flange mating surface. Check for continuous bubble formation. Allowable pressure drop ≤ 0.1 bar/minute. |
| 6. Load Testing | Perform continuous stamping using standard test plates and monitor the spring's dynamic response. | Performance Criterion: The spring should maintain linear compression during operation without abnormal vibration or deviation. A laser displacement sensor can be used for monitoring. |
Firestone Style Number: Style 29
Ribbed neck aluminum bead rings (equal spacing),17/8 bolts, nuts, washers
W01-358-7203 / W01 358 7203 / W013587203
WO1-358-7203 / WO1 358 7203 / WO13587203
Ribbed neck aluminum bead rings (unequal spacing) 17/8 b,n,w
W01-358-7205 / W01 358 7205 / W013587205
WO1-358-7205 / WO1 358 7205 / WO13587205
Ribbed neck aluminum bead rings (equal spacing) 11/4 b,n,w
W01-358-7201 / W01 358 7201 / W013587201
WO1-358-7201 / WO1 358 7201 / WO13587201
Rolled plate assembly*,1/2 blind nuts 3/4 NPT
W01-358-7275 / W01 358 7275 / W013587275
WO1-358-7275 / WO1 358 7275 / WO13587275
Rubber bellows only
W01-358-7902 / W01 358 7902 / W013587902
WO1-358-7902 / WO1 358 7902 / WO13587902
Firestone Style Number: Style 207
Ribbed neck aluminum bead rings (equal spacing),17/8 bolts, nuts, washers
W01-358-7242 / W01 358 7242 / W013587242
WO1-358-7242 / WO1 358 7242/ WO13587242
Ribbed neck aluminum bead rings (unequal spacing) 17/8 b,n,w
W01-358-7239 / W01 358 7239 / W013587239
WO1-358-7239 / WO1 358 7239/ WO13587239
Rubber bellows only
W01-139-0207 / W01 139 0207 / W011390207
WO1-139-0207 / WO1 139 0207 / WO11390207
Company Details
Business Type:
Manufacturer,Agent,Exporter
Year Established:
2006
Total Annual:
5999900-6999900
Employee Number:
159~189
Ecer Certification：
Verified Supplier
Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles&rsquo... Guangzhou Guomat Air Spring Co., Ltd. is located in Guangzhou, about 15min’s drive from Baiyun Airport. Our mainly products are air spring, rubber bellows, air suspension spring, air suspension compressor and refitted suspension system. They are widely used in bus, truck, cabin, vehicles&rsquo...
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