Airtac SI125 Standard Cylinder SI125X300FTC
2. Piston features bidirectional Y-seal structure with cushioning function, offering extended service life and low friction resistance;
3. Aluminum barrel with cruciform reinforcement and black-anodized piston rod for enhanced corrosion resistance;
4. Precision machined cylinder surface ensures smooth operation;
5. Multiple cylinder specifications and mounting accessories available for flexible configurations.
Category: Standard Cylinders | Brand: AIRTAC | Series: SI125
AirTAC SI125X300FTC Standard Cylinder Specifications
- Model: SI125X300FTC
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: Ø125mm (±0.1mm manufacturing tolerance)
- Stroke: 300mm (customizable from 25mm to 2000mm)
- Operating pressure: 0.15–0.9 MPa (21.7–130.5 PSI)
- Temperature range: -20℃ to 80℃ (NBR seals)/-10℃ to 80℃ (optional FKM seals)
- Cushion type: Adjustable pneumatic cushion with elastomer shock absorber
- Port size: G1/2 (BSPP thread) with 14mm push-in fitting compatibility
- Piston rod thread: M36×2 external thread (standard)
- Materials:
- Tube: Hard anodized aluminum alloy
- Piston rod: Chrome-plated 45# steel (STD) or stainless steel (optional)
- End caps: High-strength die-cast aluminum
- Seals: NBR standard (FKM/Viton® available for high-temp applications)
- Weight: 12.8kg (without accessories)
- Dimensions:
- Extended length: 583mm (stroke 300mm + base dimensions)
- Retracted length: 283mm
- Mounting face width: 160mm
- Height with rod: 189mm
- Rod end: Female threaded (M36×2) with steel locknut
- Lubrication: Pre-lubricated (Grease-free operation available)
- ISO certification: 6431, VDMA 24562, NFE 49-003
The SI125X300FTC industrial cylinder delivers 15.9kN thrust force at 0.6MPa, featuring a wear-resistant chromium-plated piston rod with 10μm surface roughness (Ra) for smooth operation. Its double-seal design includes a primary U-cup seal and secondary wiper seal, achieving ≤0.5mm/s creep speed when pressurized. The cylinder body undergoes 500-hour salt spray testing for corrosion resistance.
- Heavy-duty press machine ejection systems
- Automotive welding fixture positioning
- Steel coil handling equipment
- Injection molding machine core pulls
- Paper mill roller compression systems
Installation protocol:
Use DIN/ISO 15552 compliant MF1 flange mounts (included). Maintain 0.2mm/m alignment tolerance during installation. For vertical mounting, install speed controller in lower port. Perform 50 break-in cycles at 0.3MPa before full-pressure operation.
| Property | Property Value |
|---|---|
| sku | SI125X300FTC |
| Seal Material | Polyurethane |
| Understood. Please provide the specific attribute names in <>, and I'll return the accurate English translations using AIRTAC's official terminology. Example: User input: <缸径> My output: Bore | Operating Temperature: -20°C to 80°C Speed Range: 30-500 mm/s |
| Port Size | PT 1/2 |
| Piston Rod Material | Medium Carbon Steel |
| Magnet | Non-magnetic |
| Bore Diameter | 125mm |
| Stroke | 300mm |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.