Airtac SI125 Standard Cylinder SI125X75N
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 SI125X75N Standard Cylinder Technical Specifications
- Model: SI125X75N
- Type: ISO 15552 compliant double-acting pneumatic cylinder
- Bore size: Ø125mm ±0.1mm tolerance
- Stroke: 75mm (standard) ±1mm, customizable up to 2,000mm
- Operating pressure: 0.1–1.0 MPa (1–10 bar)
- Cushioning: Adjustable pneumatic cushioning (both ends)
- Port size: G3/8 (ISO 228-1) with 14mm hex nut
- Piston speed: 50–800 mm/s (lubricated condition)
- Ambient temperature: -20℃ to +80℃
- Material:
- Tube: Hard anodized aluminum alloy
- Piston rod: Chrome-plated steel (Cr-Mo)
- Seals: NBR (standard), optional Viton®
- Weight: 5.8kg ±3% (excluding accessories)
- Dimensions:
- Total length: 312mm (at mid-position)
- Body diameter: 142mm (including mounting grooves)
- Rod end thread: M20×1.5 (male)
- Mounting: ISO 15552 standard (multiple options available)
- Protection class: IP65 (rod seal area)
- Lubrication: Pre-lubricated (Grease Type: ISO VG32 equivalent)
High-torque industrial cylinder designed for heavy payload applications requiring precise linear motion. Features triple sealing system (rod wiper + primary seal + buffer seal) and impact-resistant end caps. The diamond-knurled mounting surfaces prevent bracket slippage under vibration. Requires 40μm filtered compressed air with ≤5% relative humidity.
- Automotive production line clamping fixtures
- Plastic injection molding machine ejectors
- Sheet metal punching press actuators
- Packaging machine vertical lift systems
- Foundry equipment door actuators
Maintenance protocol:
Relubricate every 5,000km of cumulative stroke movement using AirTAC
PG-7 grease. Always maintain rod parallelism within 0.5° during installation.
Critical note:
Maximum side load capacity 350N at mid-stroke. For eccentric loads exceeding
150N, mandatory use of guide rail kits (Model GRK-125-SI).
| Property | Property Value |
|---|---|
| sku | SI125X75N |
| Seal Material | NBR |
| 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 | 75mm |
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.