Airtac SED Double Rod Cylinder SED125X160S
The AirTAC Airtac SED Double Rod Cylinder SED125X160S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø32mm piston rod exits BOTH ends of the Ø125mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 160mm, PT1/2 ports, adjustable cushioning.
- BoreØ125 mm
- Stroke160 mm
- Port sizePT1/2
- ConfigurationDouble rod
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SED Double Rod Cylinder SED125X160S
The AirTAC SED125X160S is a double-acting, double-rod ISO 15552 profile cylinder. A 32 mm rod exits both end covers, yielding identical annulus areas so you get 5734 N of output force in both extend and retract directions at 0.5 MPa. The extruded aluminum barrel includes sensor grooves, and the -S magnet option allows direct mounting of DMSE electronic or CMSE reed switches without extra brackets.
Field-adjustable air cushions at both ends provide 40 mm of deceleration travel to absorb heavy kinetic energy. It uses a PT1/2 port and an M27x2 rod-end thread. Because a rod protrudes from the rear cover, you must leave clearance for rear-mounted tooling or cam triggers.
Airtac SED Double Rod Cylinder SED125X160S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED125X160S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø125 mm |
| Stroke | 160 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/2 |
| Rod thread | M27×2 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C (0–150 °C with FKM seals) |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SED datasheet and ISO 15552 / VDMA 24562 dimensions. Confirm against the product label before installation. Port options: PT (standard) / G (BSPP).
Theoretical Output Force (Ø125mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 5734 N |
| 0.7 MPa | 8027 N |
| Max (@1.0 MPa) | 1169 kgf |
Because a rod exits both ends, the effective piston area — and therefore the force — is identical on extend and retract. Actual usable force is lower than theoretical; size with a safety margin.
Model Code: Airtac SED Double Rod Cylinder SED125X160S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 125 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B). Seals: TPU (blank) / FKM high-temp (H) / NBR (N). Thread: PT (blank) / G. Mounting (SED): Basic, LB, FA, TC, FTC, TCM1, TCM2. Related: SE (single rod), SEJ (double-rod adjustable stroke), BSED (double-rod rod lock).
Where the Airtac SED Double Rod Cylinder SED125X160S Is Used
Heavy Press Ejection
Drives a 5734 N ejection fork from both sides of a stamping press, ensuring the heavy part dislodges evenly without rotational binding.
Multi-Spindle Lathe Loader
Uses the twin 32 mm rods to push and pull a dual-grip bar feeder, maintaining precise alignment while transferring heavy stock.
Thick Plate Straightener
Applies equal 8028 N clamping force in both directions to flatten thick steel plates, using the rear rod to simultaneously trigger a return sensor.
Is the Airtac SED Double Rod Cylinder SED125X160S the Right Cylinder?
This 125 mm bore generates 5734 N both ways at 0.5 MPa and 8028 N at 0.7 MPa, peaking at 1169 kgf. If your load requires less force, the neighboring 100 mm bore provides 3681 N both ways. For extreme heavy-duty needs, this is the largest standard SED bore available. Choose this double-rod design over a single-rod SE when you need superior anti-rotation guidance, dual-side actuation, or rear-rod cam triggering. Standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Note that the adjustable air cushion only decelerates the load near stroke end; it is not a brake. A plain SED will drift on air loss, so for fail-safe position holding, consider a BSED double-rod rod lock or an external pilot-operated check valve. At 160 mm stroke, side loads are minimal, but always guide external loads to prevent binding.
Quick checklist
- ✓ Equal force/speed both directions needed?
- ✓ Back-rod space for tooling or a flag
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Support both rod ends; avoid side load.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (LB/FA/TC/FTC/TCM1/TCM2).
- check Installation by qualified personnel per AirTAC docs.
Airtac SED Double Rod Cylinder SED125X160S FAQ
Because the double-rod design creates equal piston areas on both sides, force is identical in both directions: 5734 N at 0.5 MPa, 8028 N at 0.7 MPa, and a maximum of 1169 kgf at 1.0 MPa.
The twin rods provide equal force both ways, superior anti-rotation guidance for heavy loads, and allow you to mount a rear cam or sensor flag. It is dimensionally interchangeable per ISO 15552, but omits rear-flange FB mounts due to the rear rod.
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