Airtac SGC Standard Cylinder SGC125X850SH
The AirTAC Airtac SGC Standard Cylinder SGC125X850SH is a genuine double acting ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 850mm stroke, G1/2 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.
- BoreØ125 mm
- Stroke850 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- CushionAdjustable, 40 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 SGC125X850SH
Delivering 6136 N of push force at 0.5 MPa, this double-acting ISO 15552 tie-rod cylinder handles large-bore automation tasks. The SGC125X850SH features a 125 mm bore, an 850 mm stroke, and a G1/2 air port. Four steel tie rods clamp the aluminum barrel to the covers for high structural rigidity, while a two-way piston seal maintains an internal oil reservoir for long service life. Because this SKU includes the -S option, a built-in piston magnet enables position sensing with CMSG, DMSG, or EMSG switches.
The -H designation equips this unit with Viton (FKM) seals, extending the operating temperature range from -20 to +70 C up to a sustained 0-150 C for high-heat environments. For practical sizing, plan for about 3682 N of real work at 0.5 MPa, which safely lifts roughly 313 kg vertically with a 2:1 margin. The 850 mm stroke demands careful alignment to prevent rod bending, making external guide rails essential to absorb side loads.
Airtac SGC Standard Cylinder SGC125X850SH Technical Specifications
| Model | Airtac SGC Standard Cylinder SGC125X850SH |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 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 SGC125X850SH
| SGC | ISO 15552 tie-rod cylinder (double-acting type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×850 | 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 SGC125X850SH Is Used
Injection Mold Ejection
Uses the 6136 N push force at 0.5 MPa to eject heavy automotive interior panels from hot molds, relying on the Viton -H seal to withstand 150 C ambient radiant heat.
Pallet Diverting Arm
Extends the full 850 mm stroke to push heavy freight pallets across transfer lines, requiring external guide rails to prevent rod bending during lateral diversion.
High-Reach Stacking Lift
Raises 313 kg material loads vertically in high-temperature logistics zones, using the -S magnet and DMSG sensors to confirm top and bottom positions.
Is the Airtac SGC Standard Cylinder SGC125X850SH the Right Cylinder?
When sizing this 125 mm bore unit, verify if the 6136 N push force at 0.5 MPa provides adequate thrust, as stepping up to the 160 mm bore yields 10053 N. If your application requires less force, note that 125 mm is the smallest available SGC option. The integrated -S magnet allows direct mounting of CMSG, DMSG, or EMSG sensors without further modification. With an 850 mm stroke, you must use external guide rails to support the rod and prevent excessive bending under load. Remember that a standard double-acting cylinder drifts when air is lost or the valve is centered; the adjustable 40 mm air cushions only decelerate the piston near the end of stroke. To hold a load safely mid-stroke, install an external rod lock or a pilot-operated check valve.
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 SGC125X850SH FAQ
The 125 mm bore provides a push force of 6136 N and a pull force of 5734 N at 0.5 MPa. At 0.7 MPa, push is 8590 N and pull is 8028 N. The theoretical maximum force is 1251 kgf at 1.0 MPa. The air port size is G1/2, the rod diameter is 32 mm, and the speed range is 30-500 mm/s.
No, the double-acting piston will drift if air is lost or the valve is centered. The 40 mm adjustable air cushions at both ends only decelerate the piston near the stroke ends and do not function as a locking brake. To maintain a vertical position safely, you must add an external rod lock or a pilot-operated check valve.
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