Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-40
The AirTAC Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-40 is a genuine double acting, adjustable stroke ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting, adjustable stroke
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-40
Generating 6136 N of push force at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses four steel rods to clamp its aluminium barrel for high structural rigidity. It is dimensionally interchangeable per the ISO 15552 mounting interface, dropping directly into existing large-bore fixtures. The G1/2 port feeds the 125 mm bore, yielding a safe working load of roughly 3682 N, which translates to lifting about 313 kg vertically with a 2:1 margin.
The -40 code denotes an external adjuster that shortens the EXTEND stroke on-site by up to 40 mm, giving a usable extend range of 135-175 mm while the retract end remains fixed. You can fine-tune the end position without physically changing the cylinder. A two-way piston seal pairs with 40 mm adjustable air cushions at both ends to absorb shock. This base SKU lacks a magnet and cannot accept CMSG/DMSG/EMSG sensors; for high-heat environments up to 150 C, specify the Viton H seal option instead of the standard TPU.
Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-40 Technical Specifications
| Model | Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-40 |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 mm |
| Acting type | Double acting, adjustable stroke |
| 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 SGCJ125~160 Adjustable Cylinder SGCJ125X175-40
| SGCJ | ISO 15552 tie-rod cylinder (adjustable-stroke type). |
|---|---|
| 125 | Bore size in mm (125 / 160 / 200 / 250). |
| ×175 | 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 SGCJ125~160 Adjustable Cylinder SGCJ125X175-40 Is Used
Press Fit Tuning
Dial in the exact 135-175 mm extend position on-site to seat bearings without over-travel, leveraging the 6136 N push force for reliable pressing.
Variable Depth Sealing
Adjust the extend stroke by up to 40 mm to accommodate different carton heights on a shared line, using the 40 mm cushions to protect the packaging.
Stopper Gate Positioning
Fine-tune the stopping point of pallets on a conveyor by tweaking the external adjuster, avoiding mechanical redesign when pallet sizes change.
Is the Airtac SGCJ125~160 Adjustable Cylinder SGCJ125X175-40 the Right Cylinder?
When sizing this unit against its neighbours, stepping down is not an option as 125 mm is the low edge of the SGCJ family, but stepping up to the 160 mm bore raises the 0.5 MPa push force to 10053 N. The adjustable stroke is invaluable when you need on-site end-position tuning across shared stroke variants or want a single spare for multiple machines. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2. Because this 175 mm stroke is under 500 mm, side-load stress is minimal, though external guides should still carry any heavy lateral loads. Note that this non-magnetised version cannot host position sensors; you must select the -S variant for CMSG/DMSG/EMSG switches.
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 SGCJ125~160 Adjustable Cylinder SGCJ125X175-40 FAQ
This 125 mm bore cylinder features a G1/2 air port and a 32 mm rod. It delivers 6136 N push and 5734 N pull at 0.5 MPa, increasing to 8590 N push and 8028 N pull at 0.7 MPa. The theoretical maximum force is 1251 kgf at 1.0 MPa.
The -40 code provides an external stop screw that lets you shorten the extend stroke by up to 40 mm on-site, yielding a usable extend range of 135-175 mm. The nominal 175 mm stroke is the maximum, and the retract end remains fixed. This mechanism only sets the end position and does not lock the load.
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