
2. SG series adopts dual Y-type unidirectional piston seals with self-compensating design, delivering extended service life and low starting pressure. SGC series features space-saving asymmetric bidirectional seals with oil reservoir functionality;
3. SG series utilizes steel cylinder construction with exceptional impact resistance;
4. SGC series employs aluminum cylinder tubes compatible with optional magnetic piston position sensing (not available for SG series);
5. Precision adjustable pneumatic cushioning mechanism ensures smooth deceleration;
6. Comprehensive range of bore sizes and mounting accessories for flexible system integration;
7. High-temperature resistant seals enable reliable operation from 0°C to 150°C.
Category: Standard Cylinders | Brand: AirTAC | Series: SGJ Adjustable Steel Cylinder Series
AirTAC SGJ Steel Tube Adjustable Cylinder SGJ125X400-40 Specifications
- Model: SGJ125X400-40
- Type: Steel tube cylinder with adjustable cushioning
- Bore size: 125mm
- Stroke: 400mm
- Operating pressure: 0.1–0.9 MPa
- Temperature range: -20℃ to 80℃
- Cushion type: Adjustable pneumatic cushion (both ends)
- Mounting style: Front/rear flange & foot mounting (ISO 15552 standard)
- Port size: 1/2" NPT (G1/2 optional)
- Piston rod thread: M20x1.5
- Material: 
            - Cylinder tube: Precision honed steel tube
- Piston rod: Chrome-plated steel
- Seals: NBR (Nitrile rubber)
 
- Weight: 16.8kg (dry, without accessories)
- Dimensions:
            - Total length: 638mm (at mid-stroke position)
- Body diameter: 133mm
- Mounting base height: 25mm
- Rod end protrusion: 58mm (minimum)
 
- Protection rating: IP65 (standard wiper design)
- Lubrication: Pre-lubricated (recommended relubrication every 500km stroke)
Heavy-duty adjustable cylinder with steel tube construction, designed for high moment load applications requiring precise end-position damping control. Features corrosion-resistant chrome rod and dual cushion adjustment screws for optimized deceleration. Compatible with ISO 15552 mounting accessories.
- Automotive welding fixture positioning
- Plastic injection molding machine ejectors
- Paper converting equipment actuators
- Heavy material handling systems
- Industrial press vertical lifting mechanisms
 Installation note: 
            Maintain horizontal orientation for maximum service life. Use locknuts on adjustment screws after tuning. 
            Requires 40μm filtered air with 1-5mg/m³ oil mist lubrication for optimal performance.
 Installation note: 
            Maintain horizontal orientation for maximum service life. Use locknuts on adjustment screws after tuning. 
            Requires 40μm filtered air with 1-5mg/m³ oil mist lubrication for optimal performance.
        | Property | Property Value | 
|---|---|
| sku | SGJ125X400-40 | 
| Adjustable Stroke | <40mm> | 
| 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 70°C Speed Range: 30 to 500 mm/s | 
| Port Size | PT 1/2 | 
| Cushion Stroke | <40mm> | 
| Bore Diameter | 125mm | 
| Stroke | <400mm> | 
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.
 
              