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 SI125BX350 Standard Cylinder Specifications
- Model Code Breakdown: SI(Standard Cylinder) 125(Bore Size) BX(Series) 350(Stroke)
- Bore Diameter: 125 mm
- Stroke: 350 mm (±1.5mm tolerance)
- Operating Pressure: 0.05-1.0 MPa
- Piston Speed: 50-700 mm/s (optimal 200-400 mm/s)
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting Style: Basic type (ISO 15552 standard)
- Port Size: G1/2 (BSPP thread)
- Ambient Temperature: -20℃ to 80℃
- Piston Rod Material: Chrome-plated steel (hardness HRC 45-55)
- Tube Material: Aluminum alloy (anodized surface)
- Seals: NBR (nitrile) standard, optional FKM/Viton
- Weight: 11.8 kg (including mounting accessories)
- Dimensions:
- Total Length (L): 637 mm (stroke 350 + 287mm base length)
- Width (W): 165 mm (mounting face width)
- Height (H): 155 mm (including rod end)
- ISO Standard: 15552 compliant
- Rod End Thread: M20×1.5 (male)
High-force industrial cylinder with 9,800N theoretical thrust at 0.8MPa (excluding efficiency factors). Features dual anti-rotation guide rods for enhanced lateral load capacity (max 400N lateral force). Optional magnetic sensor slots (SI-MF series compatible) for position feedback. Requires 5μm filtered lubricated air (ISO 8573-1 class 3).
- Press machine ejection systems
- Plastic injection molding clamp units
- Steel coil handling equipment
- Automotive welding fixture positioning
- Palletizing robot end-effectors

Property | Property Value |
---|---|
sku | SI125BX350 |
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 | Non-magnetic |
Bore Diameter | 125mm |
Stroke | 350mm |
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.