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 SI125X200STC Standard Cylinder Specifications
- Model: SI125X200STC
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: 125 mm
- Stroke: 200 mm (adjustable cushioning)
- Mounting style: Double earring mounting with front thread (STC series)
- Operating pressure: 0.05–1.0 MPa
- Cushioning type: Adjustable pneumatic cushion at both ends
- Port size: G3/8 (NPT1/2 optional)
- Seal material: High-grade NBR rubber (Fluorine rubber available for special orders)
- Temperature range: -20℃ to 80℃ (extended to 150℃ with high-temp seals)
- Protection rating: IP65 (standard), IP67 (with optional wiper seal)
- Piston rod material: Chrome-plated carbon steel (SUS304 stainless steel optional)
- Weight: 8.7 kg ±2% (without accessories)
- Dimensions:
- Length: 406 mm (minimum retracted length)
- Width: 165 mm (mounting ear center distance)
- Height: 165 mm (cylinder outer diameter)
High-torque industrial cylinder engineered for heavy-duty linear motion applications. Features corrosion-resistant construction with triple-layer chrome plating on the piston rod and anodized aluminum tube. The STC mounting variant allows for precise angular alignment in articulated systems. Includes magnetic piston for position sensing compatibility (sensor not included).
- Automotive production line clamping fixtures
- Plastic injection molding machine ejectors
- Steel mill material handling systems
- Paper processing equipment actuators
- Heavy-duty packaging machinery
- Max theoretical force: 1,227N @ 0.63MPa (extending)
- Piston speed range: 50–800 mm/s
- Service life: 5,000 km travel distance (NBR seals)
- Repeat positioning accuracy: ±0.5 mm (with guide mechanism)
| Property | Property Value |
|---|---|
| sku | SI125X200STC |
| 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 | <200mm> |
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.









