
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 Series Steel Pipe Adjustable Cylinder SGJ250X900-40 Technical Details
- Model Code: SGJ250X900-40
- Bore Size: Ø250mm (ISO 15552 standard)
- Stroke: 900mm (±0.5mm tolerance)
- Operating Pressure: 0.1-0.9 MPa
- Cushioning Type: Adjustable buffer (both ends)
- Mounting Style: Basic type (MF1) / Foot-mounted (optional)
- Port Size: G3/8 (NPT1/2 optional)
- Piston Rod Thread: M30×1.5 (external)
- Ambient Temperature: -20℃ to +80℃
- Piston Speed: 50-750 mm/s (lubricated)
- Seal Material: NBR + PU combination
- Tube Material: Cold drawn precision steel pipe (ST52)
- Surface Treatment: Hard chrome plated rod (25μm)
- Weight: 48.7 kg (dry, without accessories)
- Dimensions (L×W×H): 1125mm × 280mm × 280mm (retracted length)
Heavy-duty industrial cylinder with precision-ground steel construction, designed for high moment load applications. Features dual adjustable pneumatic cushions with 5-stage damping control (0-100% buffer effect). Integrated mounting slots allow direct installation without additional brackets. Requires ISO VG32 hydraulic oil mist lubrication for optimal performance.
- Metal stamping press ejection systems
- Automotive welding fixture positioning
- Construction machinery boom actuation
- Paper roll handling in printing plants
- Shipbuilding jig clamping mechanisms
 Maintenance Note: 
            Perform cushion needle adjustment at 85% of maximum operating pressure. 
            Replace rod wiper seal every 500km of cumulative stroke movement. 
            Use Molykote G-5007 grease for extreme temperature conditions.
 Maintenance Note: 
            Perform cushion needle adjustment at 85% of maximum operating pressure. 
            Replace rod wiper seal every 500km of cumulative stroke movement. 
            Use Molykote G-5007 grease for extreme temperature conditions.
        | Property | Property Value | 
|---|---|
| sku | SGJ250X900-40 | 
| 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 1/8 | 
| Cushion Stroke | 60mm | 
| Bore Diameter | <250MM> → <250mm> | 
| Stroke | <900mm> | 
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.
 
              