Airtac SED Double Rod Cylinder SED40X950S
The AirTAC Airtac SED Double Rod Cylinder SED40X950S 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 950mm, PT1/4 ports, adjustable cushioning.
- BoreØ40 mm
- Stroke950 mm
- Port sizePT1/4
- ConfigurationDouble rod
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SED Double Rod Cylinder SED40X950S
The AirTAC SED40X950S is a double-acting, double-rod profile cylinder built to the ISO 15552 interface. Because a 16mm rod exits both end covers, the annulus area is identical on both sides, yielding equal force in extend and retract. You get 528 N each way at 0.5 MPa and 739 N at 0.7 MPa.
Fitted with a standard magnet (-S), it tracks position directly with CMSE reed or DMSE electronic sensors. The extruded aluminum barrel lacks external tie rods, and field-adjustable air cushions at both ends decelerate the load near stroke end. Note the 950mm stroke leaves a long rear rod protrusion, so verify your rear clearance.
Airtac SED Double Rod Cylinder SED40X950S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED40X950S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 950 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 SED40X950S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 40 | Bore size in mm. |
| ×950 | 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 SED40X950S Is Used
Long-Stroke Transfer Pusher
Drives a 950mm packaging transfer carriage. The 528 N equal both-way force ensures smooth advance and return without speed mismatch.
Dual-Side Clamping Station
Uses the twin rods to clamp an aluminum extrusion from both ends simultaneously, preventing workpiece rotation during machining.
Rear-Cam Sequencing Valve
The protruding rear rod actuates a pilot valve cam at the end of stroke, sequencing the next pneumatic station without extra sensors.
Is the Airtac SED Double Rod Cylinder SED40X950S the Right Cylinder?
Select this 40mm bore when you need 528 N of equal both-way force at 0.5 MPa. If your load is lighter, step down to the 32mm bore for 345 N; if heavier, step up to the 50mm bore for 825 N. The twin-rod design resists rotation and lets you mount a rear cam or secondary mechanism, which a single-rod SE cannot do.
At 950mm, the extended rod is highly susceptible to side loads and sagging. Add external guide rails to prevent binding. This cylinder drifts on air loss, as the cushions only decelerate near stroke end. For fail-safe holding, use a BSED double-rod lock. To drop-in replace an ISO 15552 unit, match the 40mm bore, 950mm stroke, PT1/4 port, and mounting (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SED40X950S FAQ
Because the double-rod design has equal annulus areas on both sides, force is identical in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and a maximum of 108 kgf at 1.0 MPa.
The twin rods provide equal push and pull forces, better anti-rotation guidance for the load, and a rear rod end for mounting a cam or sensor flag. It drops into any standard ISO 15552 mounting footprint.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SED Cylinders
Request a Quote for Airtac SED Double Rod Cylinder SED40X950S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.