Airtac SGC Standard Cylinder SGC250X70S
The AirTAC Airtac SGC Standard Cylinder SGC250X70S is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 70mm 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
- Stroke70 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
About the Airtac SGC Standard Cylinder SGC250X70S
Delivering massive thrust for heavy industrial tasks, the AirTAC SGC250X70S is a double-acting ISO 15552 tie-rod cylinder built around a 250 mm bore and a 70 mm stroke. It generates 24543 N of push force and 23562 N of pull force at 0.5 MPa, while the G1 air port feeds the massive 50 mm piston rod. Because it adheres to the ISO 15552 mounting interface, it drops directly into existing large-bore fixtures without custom bracketry.
Four steel tie rods clamp the aluminum barrel to the covers for extreme rigidity under high loads, and the two-way piston seal maintains an internal oil reservoir for long-term lubrication. Since this is a Ø250 bore, TPU seals are not offered; instead, the front-cover packing and buffer gasket use NBR (with a Viton H option for 0-150 C environments). The built-in -S magnet supports CMSG, DMSG, and EMSG position switches. For practical sizing, plan for about 14726 N of real work at 0.5 MPa, which lifts roughly 1251 kg vertically with a 2:1 safety margin.
Airtac SGC Standard Cylinder SGC250X70S Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X70S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 70 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 SGC250X70S
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×70 | 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 SGC250X70S Is Used
Heavy Press Stamping
Provides the intense linear force needed to drive large progressive dies and form thick steel plates in automotive stamping presses.
Pallet Clamp Actuation
Actuates heavy-duty mechanical clamps on automated guided vehicles to secure massive palletized loads during high-speed warehouse transit.
Injection Mold Extraction
Pushes large molded plastic automotive bumpers out of heavy injection molding tools, utilizing the full 24543 N push capacity at 0.5 MPa.
Is the Airtac SGC Standard Cylinder SGC250X70S the Right Cylinder?
When sizing this 250 mm bore actuator, compare its 24543 N push force at 0.5 MPa against the next size down: the 200 mm bore provides 15708 N. As the largest SGC option, there is no larger standard bore to step up to. The 70 mm stroke keeps the retracted length compact, but if your application approaches the 500 mm mark or beyond, you must support the rod against side-loading to prevent premature seal wear and rod bending. The -S magnet allows seamless integration of CMSG, DMSG, or EMSG sensors for end-of-stroke confirmation.
Keep in mind that a standard double-acting cylinder will drift if air pressure is lost or the directional valve is centered. The adjustable 60 mm air cushions at both ends only decelerate the piston near the stroke limits to prevent end-cap impact; they do not function as a locking brake. If your machinery requires absolute position holding under load, install an external pilot-operated check valve or a dedicated rod lock.
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 SGC250X70S FAQ
This 250 mm bore cylinder features a G1 air port and an M42x2.0 rod thread. It delivers 24543 N push and 23562 N pull at 0.5 MPa, 34360 N push and 32986 N pull at 0.7 MPa, with a theoretical maximum force of 5006 kgf at 1.0 MPa.
Yes, the SGC250X70S is dimensionally interchangeable per the ISO 15552 mounting interface, so it accepts standard large-bore ISO 15552 foot, flange, and trunnion brackets. The included -S magnet enables the use of CMSG, DMSG, and EMSG reed or electronic switches for position sensing.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Made to Order
Large-bore cylinders built to order — confirm lead time.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SGC Cylinders
Request a Quote for Airtac SGC Standard Cylinder SGC250X70S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.