Airtac SI125 Standard Cylinder SI125X550SH
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 SI125X550SH Standard Cylinder Specifications
- Model: SI125X550SH
- Bore size: 125 mm
- Stroke: 550 mm
- Operating pressure: 0.15–0.8 MPa (21.7–116 psi)
- Cushion type: Adjustable air cushion (both ends)
- Mounting style: Basic type (Standard MF1/MF2 mounting brackets optional)
- Port size: G1/2 (ISO standard)
- Piston speed: 50–800 mm/s
- Ambient temperature: -20℃ to 80℃
- Material:
- Cylinder tube: Aluminum alloy with hard anodized surface
- Piston rod: Chrome-plated carbon steel (Cr-Mo)
- Seals: NBR (Nitrile rubber) standard
- Weight: 14.8 kg (with rod, excluding accessories)
- Dimensions:
- Extended length: 1,245 mm (cylinder length + rod extension)
- Retracted length: 695 mm
- Body diameter: 125 mm ±0.5mm
- Rod end thread: M36×2
- Protection rating: IP65 (standard wiper seal)
- Lubrication: Pre-lubricated (recommended relubrication every 2,000 km stroke)
A heavy-duty industrial cylinder designed for high thrust applications requiring long stroke precision. Features dual adjustable cushioning for smooth end-of-stroke deceleration and corrosion-resistant construction. The chrome-plated piston rod withstands side loads up to 20% of maximum thrust capacity. Requires 40μm filtered compressed air with ISO 8573-1:2010 class 4.4.3 air quality.
- Automotive assembly line clamping systems
- Plastic injection molding machine ejectors
- Steel mill material handling gates
- Paper processing equipment tensioners
- Construction machinery boom actuators
Installation note:
For vertical installations exceeding 45° angle, use rod-end support brackets (AET-125S).
Maintain 0.5–1mm alignment tolerance during mounting. Lubricate rod weekly in high-cycle
applications (>5,000 cycles/day).
| Property | Property Value |
|---|---|
| sku | SI125X550SH |
| Seal Material | FKM |
| 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 | 550mm |
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.