
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 SGJ250X800-50 Steel Tube Adjustable Cylinder Specifications
- Model: SGJ250X800-50
- Type: Double-acting adjustable stroke cylinder (steel tube construction)
- Bore size: Ø250 mm
- Stroke: 800 mm (adjustable via external stoppers)
- Operating pressure: 0.05-1.0 MPa
- Operating temperature: -20℃ to 80℃
- Cushioning: Adjustable pneumatic cushion (both ends)
- Mounting style: MF1/MF2 standard flange or foot mounting (optional accessories)
- Port size: G1-1/2 (NPT optional)
- Piston rod material: Chrome-plated carbon steel
- Tube material: Cold drawn precision steel tube (anti-corrosion treatment)
- Weight: 28.5 kg (dry, without accessories)
- Dimensions: 1200mm(L) × 260mm(W) × 260mm(H) (retracted length + mounting dimensions)
- Max theoretical thrust: 4900N @ 0.63MPa
- Rod thread: M50×2 (external)
- Position detection: Built-in magnet compatible with standard magnetic switches
Industrial-grade heavy-load cylinder featuring precision-ground steel tube construction with chrome-plated piston rod for extended wear resistance. The dual adjustable cushioning system minimizes end-impact while allowing stroke adjustment through external mechanical stops (±5% of nominal stroke). Sealed with high-grade NBR seals for reliable operation in dusty environments. Requires 40μm filtered air with recommended ISO VG32 hydraulic oil mist lubrication.
- Automotive production line clamping/positioning systems
- Foundry equipment for mold manipulation
- Heavy material handling in logistics automation
- Paper mill roller positioning mechanisms
- Construction machinery actuation systems
 Installation note: 
            Maintain 0.5mm minimum alignment tolerance during mounting. 
            For vertical installations exceeding 45° angle, use rod-end support brackets (sold separately). 
            Lubricate rod weekly in high-cycle applications (≥500 cycles/hour).
 Installation note: 
            Maintain 0.5mm minimum alignment tolerance during mounting. 
            For vertical installations exceeding 45° angle, use rod-end support brackets (sold separately). 
            Lubricate rod weekly in high-cycle applications (≥500 cycles/hour).
        | Property | Property Value | 
|---|---|
| sku | SGJ250X800-50 | 
| Adjustable Stroke | <50mm> | 
| 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 1/8 | 
| Cushion Stroke | 60mm | 
| Bore Diameter | <250MM> → <250mm> | 
| Stroke | 800mm | 
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.
 
              