Airtac SGC Standard Cylinder SGC250X405
The AirTAC Airtac SGC Standard Cylinder SGC250X405 is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø250mm bore and 405mm 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
- Stroke405 mm
- Port sizeG1
- Acting typeDouble acting
- Rod threadM42×2.0
- CushionAdjustable, 60 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SGC Standard Cylinder SGC250X405
Delivering massive thrust for heavy industry, this double-acting tie-rod cylinder generates 24543 N of push force and 23562 N of pull at 0.5 MPa. Built to ISO 15552 mounting interface dimensions, it drops directly into existing large-bore fixtures without custom bracketry. Four steel tie rods clamp the aluminum barrel to the covers, providing the high rigidity needed for 34360 N outputs at 0.7 MPa, while a two-way piston seal maintains an internal oil reservoir for long service life.
Because this is a 250 mm bore unit, the front-cover packing and buffer gasket use NBR rather than TPU, with a Viton H option available for 0-150 C high-temperature environments. It features a 50 mm rod, an M42x2.0 rod thread, and a G1 air port. Plan for about 14726 N of real work at 0.5 MPa, which lifts roughly 1251 kg vertically with a 2:1 safety margin. Note that this specific SKU lacks the -S magnet, so it cannot host CMSG, DMSG, or EMSG position switches.
Airtac SGC Standard Cylinder SGC250X405 Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC250X405 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø250 mm |
| Stroke | 405 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 SGC250X405
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 250 | Bore size in mm (125 / 160 / 200 / 250). |
| ×405 | 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 SGC250X405 Is Used
Heavy-Duty Metal Forming
Drives large stamping and bending presses where the 24543 N push force at 0.5 MPa is required to shape thick steel plates.
Injection Mold Clamping
Secures heavy industrial molds on large injection molding machines, utilizing the 50 mm rod and tie-rod rigidity to withstand high clamping impacts.
Palletizer Actuation
Lifts and positions loaded pallets weighing up to 1251 kg vertically in automated distribution centers, operating safely within a 2:1 margin.
Is the Airtac SGC Standard Cylinder SGC250X405 the Right Cylinder?
Choosing this 250 mm bore means stepping up from a 200 mm option (which provides 15708 N push at 0.5 MPa) to handle loads requiring the maximum 5006 kgf theoretical force at 1.0 MPa. As the largest bore in the SGC series, there is no larger standard size to escalate to if this capacity is insufficient. For any stroke length over 400 mm, like this 405 mm unit, carefully guide the load to prevent rod bending and premature seal wear from side-loading forces.
Remember that a standard cylinder will drift and drop its payload if air pressure is lost or the control valve is centered; the adjustable 60 mm air cushions only decelerate the piston near the end of stroke and do not function as a braking lock. To safely suspend a load, integrate an external pilot-operated check valve or a dedicated rod lock. Furthermore, because this model lacks the -S suffix, magnetic sensing is unsupported.
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 SGC250X405 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.
This specific SKU does not include a magnet, so it cannot support CMSG, DMSG, or EMSG switches; you need the -S variant for sensing. However, its ISO 15552 mounting interface ensures dimensional interchangeability with standard large-bore fixtures and accessories, and the four steel tie rods provide essential structural rigidity for high-thrust applications.
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1-Year Warranty
Covers non-human-caused product damage.
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Large-bore cylinders built to order — confirm lead time.
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