Airtac SED Double Rod Cylinder SED40X90S
The AirTAC Airtac SED Double Rod Cylinder SED40X90S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø16mm piston rod exits BOTH ends of the Ø40mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 90mm, PT1/4 ports, adjustable cushioning.
- BoreØ40 mm
- Stroke90 mm
- Port sizePT1/4
- ConfigurationDouble rod
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SED Double Rod Cylinder SED40X90S
The AirTAC SED40X90S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 90mm stroke. Because a 16mm rod exits both end covers, the effective piston area is identical in each direction, yielding an equal 528N of thrust and pull at 0.5 MPa. The extruded aluminum barrel contains no external tie rods, ensuring a clean profile that drops in dimensionally for any ISO 15552 footprint.
Equipped with a standard magnet (-S), this unit interfaces directly with CMSE reed and DMSE electronic sensors dropped into the barrel grooves. The rear rod extension can drive a secondary mechanism or mount a physical cam, while adjustable air cushions at both ends provide tunable deceleration near the stroke limits.
Airtac SED Double Rod Cylinder SED40X90S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED40X90S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 90 mm |
| Configuration | Double rod, double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 SED40X90S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×90 | 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 SED40X90S Is Used
Servo-Driven Pick & Place
Drives a dual-sided gripper with 739N at 0.7 MPa, utilizing the twin rods to keep the tooling perfectly parallel during fast vertical lifts.
Component Stamping Press
Applies an equal 528N clamping force on the extend and retract strokes to form light sheet metal, using the rear rod to trip a proximity limit switch.
Pallet Diverting Gate
Pushes packaging pallets off a main conveyor line with 108 kgf max force, relying on the rigid double-rod structure to resist twisting under offset loads.
Is the Airtac SED Double Rod Cylinder SED40X90S the Right Cylinder?
Choose this 40mm bore when an application requires 528N (0.5 MPa) of equal bidirectional force. If your load is lighter, step down to the 32mm bore, which provides 345N both ways. For heavier resistance, step up to the 50mm bore, delivering 825N in each direction. The twin-rod design is specifically favored over a single-rod SE cylinder when the load demands high resistance to rotation or requires mounting a rear cam for secondary signaling. Remember that air pressure alone does not hold position on loss of supply; the piston will drift. For fail-safe holding, use an external rod lock or pilot-operated check valve. Since the stroke is 90mm (under 300mm), side loading is minimal, but always guide the load to prevent rod 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 SED40X90S FAQ
Because the double-rod design subtracts the rod area from both sides, the force is identical in both directions: 528N at 0.5 MPa, 739N at 0.7 MPa, and a maximum of 108 kgf at 1.0 MPa.
Yes. The SED40X90S is a true ISO 15552 profile cylinder with a PT1/4 port, M12x1.25 rod thread, and standard mounting dimensions. It drops in dimensionally for any ISO 15552 double-rod cylinder without requiring bracket modifications.
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