Airtac SI125 Standard Cylinder SI125X303S
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 SI125X303S Standard Cylinder Technical Specifications
- Model Code: SI125X303S
- Bore Size: 125mm (ISO Standard)
- Stroke: 300mm (Adjustable cushion ±3mm)
- Operation Type: Double-acting
- Working Pressure: 0.05–1.0 MPa
- Piston Rod Material: Chrome-plated steel (HRA≥78)
- Rod Diameter: 40mm (Precision ground ±0.01mm)
- Tube Material: Aluminum alloy 6063-T5 (Anodized)
- Cushioning: Adjustable hydraulic buffer (2-stage)
- Seal Type: NBR + PU combination seals
- Port Size: G1/2 (BSPP thread)
- Temperature Range: -20℃ to 80℃ (Dry air required below 0℃)
- Max Speed: 500–800mm/s (Lubricated operation)
- Weight: 11.8kg ±2% (Without accessories)
- Dimensions (L×W×H):
- Extended Length: 743mm
- Retracted Length: 443mm
- Mounting Base: 155mm × 125mm
- Rod End Thread: M30×2.0
- ISO Certification: 6431, 15552
- Protection Class: IP66 (Dust/water jet resistant)
High-torque industrial cylinder designed for heavy-duty automation applications. Features triple-layer chrome plating (20μm) on piston rod for extended wear resistance. The buffering system reduces end-impact noise by 15dB compared to standard models. Compatible with Auto Switch (D-A93 series) for position feedback.
- Automotive welding fixture clamping
- Press machine ejection systems
- Plastic injection molding machine core pulls
- Steel coil handling equipment
- Shipbuilding jig positioning
Installation Protocol:
Requires vertical or horizontal mounting only - angular installations exceeding 5° may cause uneven seal wear.
Use locknuts with 280–320N·m torque for rod-end connections. Lubricate with ISO VG32 hydraulic oil
if pneumatic oiler not present.
| Property | Property Value |
|---|---|
| sku | SI125X303S |
| 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 | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 303mm |
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.