
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 SGJ125X25-30 Steel Tube Adjustable Cylinder Specifications
- Model: SGJ125X25-30
- Type: Double-acting adjustable stroke cylinder
- Bore size: Ø125mm (±0.1mm tolerance)
- Stroke: 25mm (adjustable range: 0-5mm via external stopper)
- Operating pressure: 0.05-0.8 MPa
- Temperature range: -20℃ to 80℃
- Cushioning: Adjustable hydraulic buffer (3-stage)
- Mounting types: MF1 front flange, LB5 foot mounting (optional)
- Material: Cold drawn steel tube (STKM13A), chrome-plated piston rod
- Seal material: NBR + polyurethane hybrid seals
- Port size: G1/2 (BSPP thread)
- Weight: 5.3kg (bare cylinder), 5.8kg (with standard accessories)
- Dimensions: 306mm(L) × 145mm(W) × 145mm(H)
- Rod end thread: M20×1.5 (ISO 12240-1 standard)
- Max piston speed: 500mm/s
- Lubrication: Pre-lubricated (Grease-free operation)
Heavy-duty steel cylinder with precision-ground inner surface, designed for high moment load applications. Features wear-resistant chromium coating and dual dust wipers. The unique 3-stage cushioning system reduces impact noise by 15dB compared to standard models. Compatible with ISO 15552 mounting accessories.
- Press machine ejection systems
- Steel coil handling equipment
- Injection molding machine clamp adjustment
- High-temperature foundry automation
- Paper mill roller positioning
 Installation notes:
 Installation notes:1. Align cylinder axis within ±0.2° deviation
2. Use M6 mounting bolts with 18-22 N·m torque
3. Allow 50mm clearance for stroke adjustment access
4. Apply thread sealant to port connections (PTFE tape not recommended)
- Inspect rod seals every 500,000 cycles
- Relubricate every 3 months (Use ISO VG32 hydraulic oil)
- Replace buffer oil annually under continuous operation
| Property | Property Value | 
|---|---|
| sku | SGJ125X25-30 | 
| Adjustable Stroke | 30mm | 
| 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 | <25 mm> | 
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.
 
              