Airtac SED Double Rod Cylinder SED63X950S
The AirTAC Airtac SED Double Rod Cylinder SED63X950S 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 950mm, PT3/8 ports, adjustable cushioning.
- BoreØ63 mm
- Stroke950 mm
- Port sizePT3/8
- ConfigurationDouble rod
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SED Double Rod Cylinder SED63X950S
The AirTAC SED63X950S is a double-acting, double-rod profile cylinder built to ISO 15552 dimensional standards. A 20mm rod exits both end covers, yielding identical annulus areas. This means you get exactly 1402 N of output force in both extend and retract directions at 0.5 MPa. The extruded aluminum barrel contains no external tie rods.
Equipped with a magnet (-S), this unit supports CMSE reed and DMSE electronic sensors for end-of-stroke detection. The PT3/8 port and M16x1.5 rod threads match standard 63mm bore hardware. Field-adjustable air cushions at both ends absorb kinetic energy near the stroke limits.
Airtac SED Double Rod Cylinder SED63X950S Technical Specifications
| Model | Airtac SED Double Rod Cylinder SED63X950S |
|---|---|
| Series | SED ISO 15552 double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 950 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 SED63X950S
| SED | ISO 15552 profile-barrel DOUBLE-ROD double-acting cylinder. |
|---|---|
| 63 | 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 SED63X950S Is Used
Web Edge Guiding
Drives a 1402 N tracking frame to keep film or foil webs aligned. The rear rod simultaneously pushes a cam to tension the idler roll.
Dual-Side Pallet Transfer
Shifts heavy pallets using equal 1962 N force both ways. The twin rods prevent the load from twisting during the 950mm traverse.
Long-Stroke Forming Press
Actuates a 950mm forming die where the rear rod links to a DMSE electronic sensor flag to confirm retraction before feeding stock.
Is the Airtac SED Double Rod Cylinder SED63X950S the Right Cylinder?
Selecting this 63mm bore yields 1402 N both ways at 0.5 MPa. Stepping down to a 50mm bore drops force to 825 N, while moving up to an 80mm bore increases it to 2268 N. The twin-rod design provides superior anti-rotation resistance compared to a single-rod SE cylinder, making it ideal for guiding heavy loads over its 950mm stroke.
Because the stroke is 950mm, external linear guides are strongly recommended to prevent side-load binding on the long 20mm rods. Note that a plain SED does not hold position on air loss; for fail-safe locking, consider a BSED double-rod rod lock. To replace an ISO 15552 unit, match the 950mm stroke, PT3/8 port, mounting style (Basic, FA, LB, TC, FTC, TCM1, or TCM2), and the -S magnet option.
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 SED63X950S FAQ
Because the rod occupies both sides of the piston, force is equal in both directions. It provides 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and a maximum of 286 kgf at 1.0 MPa.
The twin rods provide better load guidance and resist rotation. The protruding rear rod can also drive a secondary mechanism or mount a sensor flag, which is useful over long 950mm strokes.
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