Airtac SED Double Rod Cylinder SED63X850S
The AirTAC SED Double Rod Cylinder SED63X850S is a genuine double-acting ISO 15552 double-rod cylinder: a Ø20mm piston rod exits BOTH ends of the Ø63mm bore, giving equal force and speed in both directions and letting you mount tooling or a sensor flag on the back rod. Stroke 850mm, PT3/8 ports, adjustable cushioning.
- BoreØ63 mm
- Stroke850 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SED Double Rod Cylinder SED63X850S
The AirTAC SED63X850S is a double-acting, double-rod profile cylinder built to the ISO 15552 interface. A single piston drives a 20 mm rod out of both end covers, yielding identical annulus areas. This means output force is perfectly symmetrical, giving you 1402 N each way at 0.5 MPa and 1962 N at 0.7 MPa.
Equipped with a standard magnet (-S), this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The extruded aluminum barrel contains no external tie rods, and field-adjustable air cushions at both ends decelerate the load near stroke end without acting as a lock.
Airtac SED Double Rod Cylinder SED63X850S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED63X850S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 850 mm |
| Configuration | Double rod, double acting |
| Port size | PT3/8 |
| Rod thread | M16×1.5 |
| 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, 36 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 (Ø63mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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 SED63X850S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 63 | Bore size in mm. |
| ×850 | 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 SED63X850S Is Used
Web Guiding in Roll Slitters
Drives opposing guide rollers to steer paper or film webs. The 1962 N both-way force maintains precise tension without directional imbalance, while the rear rod supports a cam for edge-sensor feedback.
Dual-Side CNC Clamp Actuators
Positions clamps on both ends of a machining fixture. The twin rods prevent torsional twist during heavy milling, and the 850 mm stroke accommodates extra-long workpiece lengths.
Pallet Transfer Pushers
Pushes pallets between parallel conveyor belts. The symmetrical 1402 N force at 0.5 MPa ensures consistent feed rates, while the DMSE electronic sensors track cycle completion.
Is the Airtac SED Double Rod Cylinder SED63X850S the Right Cylinder?
Selecting this 63 mm bore provides a 1962 N both-way force at 0.7 MPa. If your payload is lighter, the adjacent 50 mm bore yields 1154 N; for heavier drives, step up to the 80 mm bore for 3175 N. The double-rod design is preferred over a single-rod SE when you need to mount a rear cam, drive a secondary mechanism, or guide a load against rotation.
At 850 mm of stroke, the extended rod length demands external load guidance to prevent side loads from damaging the 20 mm rod and M16x1.5 threads. A plain SED will drift on air loss; for fail-safe holding, specify a BSED double-rod lock. Replacement requires matching the 63 mm bore, 850 mm stroke, PT3/8 port, and mounting subset (Basic, FA, LB, TC, FTC, TCM1, 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 SED63X850S FAQ
Because the double-rod design creates equal piston areas on both sides, force is identical in extend and retract. It delivers 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and a maximum of 286 kgf at 1.0 MPa.
The twin-rod design provides equal force both ways and better load guidance against rotation. The protruding rear rod allows you to mount a sensor flag or drive a secondary mechanism, which a single-rod ISO 15552 cylinder cannot do.
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