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 SI125BX155S Standard Cylinder Specifications
- Model: SI125BX155S
- Bore size: 125mm
- Stroke: 155mm (Customizable up to 2,000mm)
- Operating pressure: 0.15–0.8 MPa
- Piston speed: 50–800 mm/s
- Cushioning: Adjustable air cushion at both ends
- Mounting type: Basic (MF1) with optional flange/clevis/foot mounts
- Port size: G3/8 (M20×1.5 optional)
- Piston rod material: Hard chrome-plated carbon steel (Cr-Mo)
- Seal material: NBR (Nitrile rubber)
- Temperature range: -20℃ to 80℃
- Lubrication: Pre-lubricated (Oil-free operation possible)
- Weight: 5.8 kg (with rod)
- Dimensions:
- Overall length: 355mm (Stroke 155 + 200mm body)
- Cylinder outer diameter: 146mm
- Mounting base width: 135mm
- Rod end thread: M24×1.5
- ISO compatibility: 15532-1 standard
- Protection rating: IP65 (Dust-tight & water jet resistant)
High-torque industrial cylinder with built-in magnetic piston (D-M9NW sensor compatible) for position feedback. Features double-acting operation, corrosion-resistant anodized aluminum barrel, and reinforced rod bearing for heavy-duty cycles. Requires 40μm filtered air with 1-10% lubricating oil content (ISO VG32 recommended).
- Press machine ejection systems
- Automotive welding fixture actuation
- Foundry equipment door clamping
- Plastic injection molding ejectors
- Heavy conveyor gate control
| Property | Property Value |
|---|---|
| sku | SI125BX155S |
| 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 | SUS304 |
| Magnet | S-Magnetic |
| Bore Diameter | 125mm |
| Stroke | 155mm |
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.









