Airtac SGCD Dual Rod Cylinder SGCD125X400S
The AirTAC Airtac SGCD Dual Rod Cylinder SGCD125X400S is a genuine double acting, double rod ISO 15552 (orig. ISO 6431) tie-rod air cylinder with a Ø125mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/2
- Acting typeDouble acting, double rod
- Rod threadM27×2.0
- CushionAdjustable, 40 mm
About the Airtac SGCD Dual Rod Cylinder SGCD125X400S
Delivering 5734 N of thrust each way at 0.5 MPa, this large-bore ISO 15552 tie-rod cylinder uses a twin-rod piston to provide perfectly symmetric output. The dual exiting rods create an identical pressure area in both directions, yielding equal push and pull force. This translates to a safe working load of about 3440 N, or roughly 292 kg lifted vertically with a 2:1 margin. Four steel tie rods clamp the aluminum barrel securely to the covers, while the G1/2 air port supplies the 125 mm bore.
Because a shaft protrudes from both end covers, the unit prevents torsional twist during travel and can drive a tool from the back end simultaneously. The included -S magnet enables position sensing with CMSG, DMSG, or EMSG switches. Standard TPU seals handle -20 to +70 C, though a Viton H option extends operation to 150 C for heated environments.
Airtac SGCD Dual Rod Cylinder SGCD125X400S Technical Specifications
| Model | Airtac SGCD Dual Rod Cylinder SGCD125X400S |
|---|---|
| Series | SGC ISO 15552 tie-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 400 mm |
| Acting type | Double acting, double rod |
| 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 | Force (both ways) | — |
|---|---|---|
| 0.5 MPa | 5734 N | 5734 N |
| 0.7 MPa | 8027 N | 8027 N |
| Max (@1.0 MPa) | 1251 kgf | |
Double-rod: the rod passes through both covers, so output force is equal in both directions.
Model Code: Airtac SGCD Dual Rod Cylinder SGCD125X400S
| SGCD | ISO 15552 tie-rod cylinder (double-rod type). |
|---|---|
| 125 | 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 SGCD Dual Rod Cylinder SGCD125X400S Is Used
Twin-Tool Machining Station
Drives a front cutting head and a rear clamping jaw simultaneously, utilizing the equal both-ways force to maintain synchronous operation without torsional twist.
Symmetric Lift Platform
Lifts roughly 292 kg of vertical load with a 2:1 safety margin, using the dual rods to keep the platform perfectly level and prevent binding during travel.
Guided Forming Press
Applies 3440 N of safe working pressure for bending tasks, relying on the four tie-rod construction and dual shafts to resist deflection on the 400 mm stroke.
Is the Airtac SGCD Dual Rod Cylinder SGCD125X400S the Right Cylinder?
When sizing this double-acting unit, compare its 5734 N equal force against neighboring bores: the larger 160 mm delivers 9425 N, while the 125 mm sits at the low edge of the large-bore range. A twin-rod design is the right call when you need anti-rotation guidance, symmetric load distribution, or a rear shaft to mount a sensor cam. Mounting options include FA, LB, TC, FTC, TCM1, and TCM2 brackets. For this 400 mm stroke, add an external guide rail to absorb side loads and prevent rod binding. Remember that the air cushion only decelerates the piston near stroke end; use an external rod lock or pilot-operated check valve if you must hold a load securely on air loss.
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 SGCD Dual Rod Cylinder SGCD125X400S FAQ
The G1/2 port feeds a 125 mm bore that outputs 5734 N at 0.5 MPa and 8028 N at 0.7 MPa. Because it is a double-rod cylinder, this force is identical in both directions. The theoretical maximum is 1169 kgf at 1.0 MPa.
The twin rods prevent rotation and allow mounting a tool or sensor cam on the back end. The -S designation means a piston magnet is built in, allowing you to attach CMSG, DMSG, or EMSG switches for precise position detection.
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 SGCD Dual Rod Cylinder SGCD125X400S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.