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 SI125BX5 Standard Cylinder Specifications
- Model: SI125BX5
- Bore size: 125mm
- Stroke range: 25-1000mm (customizable)
- Operating pressure: 0.05-1.0 MPa
- Cushion type: Adjustable air cushion (both ends)
- Mounting style: Basic front/rear flange + foot mounting
- Port size: G3/8 (standard), optional NPT1/2
- Operating medium: Clean dry air (lubricated or non-lubricated)
- Ambient temperature: -20℃ to 80℃
- Piston speed: 50-700mm/s (optimal range 100-300mm/s)
- Rod material: Chrome-plated carbon steel (ST45)
- Tube material: Aluminum alloy with hard anodization
- Seal material: NBR (standard), optional Polyurethane or Fluorocarbon
- Weight: 4.8kg (base model with 100mm stroke)
- Dimensions (L×W×H):
- Body length: 248mm (100mm stroke model)
- Mounting center distance: 160mm
- Rod end thread: M20×1.5
- Overall height with rod: 175mm
- ISO standard: 15552 compliant
- Protection class: IP54 (standard), IP67 optional
The SI125BX5 industrial cylinder features high rigidity construction with precision honed tubing, designed for heavy-duty applications requiring consistent thrust force. Its dual cushioning system minimizes end-impact noise while allowing fine adjustment of piston deceleration. The corrosion-resistant design with multi-layered sealing system ensures reliable performance in humid environments.
- Automotive welding fixture clamping mechanisms
- Plastic injection molding machine ejectors
- Steel mill conveyor gate actuators
- Paper processing equipment tension control
- Food packaging line pusher mechanisms

Property | Property Value |
---|---|
sku | SI125BX5 |
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 | <5mm> |
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.