
2. SG series features dual Y-type unidirectional piston seals with compensation mechanism, ensuring extended service life and low starting pressure. SGC series adopts specialized bidirectional sealing structure with compact dimensions and integrated lubrication reservoir;
3. SG series utilizes steel tube construction for enhanced impact resistance;
4. SGC series employs aluminum tube design with optional magnetic sensing ring (not available for SG series);
5. Precision-adjustable pneumatic cushioning system for smooth operation;
6. Comprehensive selection of cylinder sizes and mounting accessories;
7. High-temperature resistant seals enable operational range of 0-150°C.
Category: Standard Cylinders | Brand: AirTAC | Series: SGCJ200~250 Adjustable Stroke Cylinder
AirTAC SGCJ250X800-40 Adjustable Cylinder Technical Details
- Series: SGCJ200~250 Adjustable Stroke Series
 - Model Code Breakdown: SGCJ250X800-40
            
- SGCJ: Adjustable Stroke Cylinder Series
 - 250: Bore Size (mm)
 - 800: Maximum Stroke Length (mm)
 - 40: Mounting Style Code (Front Flange)
 
 - Bore Size: Ø250mm ±0.5mm
 - Stroke Range: 50-800mm (continuously adjustable)
 - Operating Pressure: 0.2-1.0 MPa
 - Temperature Range: -20℃ to 80℃ (NBR seals)
 - Cushioning: Adjustable Air Cushion (Dual Side)
 - Port Size: G1-1/2 (Standard) / Optional NPT1-1/2
 - Mounting: ISO 15552 Front Flange (MF1) with 12xM12 mounting holes
 - Body Material: Aluminum Alloy (Hard Anodized)
 - Seal Material: NBR (Standard) / Optional FKM for high temp
 - Stroke Adjustment: External Threaded Rod with Lock Nut
 - Protection Rating: IP65 (Rod Seal)
 - Lubrication: Pre-lubricated (Grease-packed)
 - Repeat Positioning Accuracy: ±0.5mm
 - Max Speed: 500 mm/s (with cushion)
 - Weight: 38.6 kg (Dry) / 39.2 kg (Lubricated)
 - Dimensions:
            
- Total Length: 1025mm (At max extension)
 - Body Diameter: Ø260mm (Including mounting flanges)
 - Rod End Thread: M30x2.0 (External)
 - Mounting Face: 315x315mm square pattern
 
 
Heavy-duty adjustable stroke cylinder with precision control features, designed for industrial applications requiring variable positioning. The dual adjustable air cushions minimize impact forces at stroke ends, while the hard-coated piston rod resists abrasion in harsh environments. Features a visual stroke indicator scale with 5mm graduation marks for quick adjustments.
- Press machine ram positioning systems
 - Injection molding machine ejector mechanisms
 - Automotive assembly line clamping fixtures
 - Steel coil handling equipment
 - Paper roll positioning in printing presses
 
| Property | Property Value | 
|---|---|
| sku | SGCJ250X800-40 | 
| Adjustable Stroke | <40mm> | 
| 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 70°C Speed Range: 30 to 500 mm/s | 
| Port Size | PT 1/8 | 
| Magnet | Non-magnetic | 
| 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.