Airtac SGC Standard Cylinder SGC250X400SH
The AirTAC Airtac SGC Standard Cylinder SGC250X400SH is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 400mm stroke, G1 air ports and adjustable end cushioning. Its large-bore tie-rod build delivers high thrust and drops into standardized ISO 15552 mounting on heavy automation.
- BoreØ250 mm
- Stroke400 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X400SH
Delivering 24543 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles the heaviest pneumatic automation tasks. The Ø250 bore uses a G1 air port, a Ø50 mm piston rod, and M42x2.0 rod-end thread. Four steel tie rods clamp the aluminium barrel to the covers for extreme structural rigidity, while the two-way piston seal maintains an internal oil reservoir for long-term lubrication. Plan for about 14726 N of real work at 0.5 MPa, or roughly 1251 kg lifted vertically with a 2:1 safety margin.
Because this SKU carries the H designation, it uses Viton (FKM) seals rated for 0-150 C environments instead of the standard NBR front-cover packing and buffer gasket usually found on the Ø250 bore. The built-in S magnet enables position sensing with CMSG, DMSG, or EMSG switches. Adjustable 60 mm air cushions at both ends absorb kinetic energy near the stroke limits, operating smoothly across a 30-500 mm/s speed range.
Airtac SGC Standard Cylinder SGC250X400SH Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X400SH |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G1 |
| Rod thread | M42×2.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 60 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SGC datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Thread options: PT (blank) / G. TPU seals are not available for the Ø250 bore (NBR / Viton only).
Theoretical Output Force (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SGC Standard Cylinder SGC250X400SH
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSG / DMSG / EMSG sensors. |
SGC-family variants: SGC (double acting), SGCD (double rod), SGCJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / FTC / TCM1 / TCM2. Seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SGC Standard Cylinder SGC250X400SH Is Used
Automotive Press Stamping
Provides the 34360 N push force at 0.7 MPa needed to actuate heavy forming dies and clamp large body panels securely in place.
High-Temperature Molding Extraction
The Viton H high-temperature seals withstand 0-150 C ambient heat near injection molding machines, extracting heavy molded parts reliably.
Palletizer Load Transfer
Utilizes the 60 mm adjustable air cushions to smoothly displace fully loaded shipping pallets weighing up to 1251 kg vertically without harsh impacts.
Is the Airtac SGC Standard Cylinder SGC250X400SH the Right Cylinder?
When sizing this 400 mm stroke unit, verify your load against the 23562 N pull force at 0.5 MPa. As the largest bore in the SGC family, there is no larger standard option; if 24543 N is excessive, step down to the Ø200 bore which provides 15708 N. The S magnet matches CMSG, DMSG, and EMSG sensors for end-position confirmation. For any application approaching the 500 mm stroke mark, ensure external guide rails support the load to prevent rod bending and premature seal wear.
Remember that a standard double-acting cylinder loses its load if air pressure drops or the valve centers, as the piston will drift. The end cushions decelerate motion but do not function as a mechanical brake. To suspend a load safely during an emergency stop, install an external rod lock or a pilot-operated check valve in the pneumatic circuit.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Long-stroke side load — support the rod end
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load; support long strokes at the rod end.
- check Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/CR/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SGC Standard Cylinder SGC250X400SH FAQ
This Ø250 bore cylinder features a G1 air port and delivers 24543 N push / 23562 N pull at 0.5 MPa, and 34360 N push / 32986 N pull at 0.7 MPa. The theoretical maximum force is 5006 kgf at 1.0 MPa.
Yes, it is dimensionally interchangeable per the ISO 15552 mounting interface, dropping directly into standard large-bore foot, flange, or trunnion fixtures. The included S magnet allows direct mounting of CMSG, DMSG, or EMSG switches for reed or electronic sensing.
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Covers non-human-caused product damage.
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Large-bore cylinders built to order — confirm lead time.
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