Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 70mm stroke). The through-rod resists twisting and lets you drive a tool on one end while a switch or dog reads position on the other — with identical force in both directions.
- BoreØ40 mm
- Stroke70 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper (both ends)
- 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 SDAD Double Rod Slim Cylinder SDAD40X70SB
The AirTAC SDAD40X70SB is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the rod occupies both chambers, the annular area is identical on extend and retract, yielding exactly 527.8 N of push and pull force at 0.5 MPa. This symmetric output is ideal for balanced tooling and prevents uneven wear on guiding elements.
This specific configuration includes a built-in piston magnet for position sensing and male M14x1.5 thread on both 16 mm rods. The short body profile saves axial mounting depth where a larger cylinder will not fit. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 70 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 120 mm |
Because a rod occupies both cylinder chambers, the effective area — and therefore the force — is identical in both directions. Specifications follow the official AirTAC SDAD datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 kgf |
Force uses the annular (rod-side) area on both strokes, so extend and retract match. Actual usable force is lower than theoretical due to friction. Size with a safety margin.
Model Code: Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×70 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rods (omit = female thread). |
Thread: PT standard. Related SDA-family variants: SDA (single rod), SSA/STA (single acting), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB Is Used
Symmetric Pinching
Drives an opposing gripper where the equal 527.8 N extend and retract force ensures balanced clamping pressure on delicate extrusions without twisting the assembly.
Dual-End Transfer
Uses the male M14x1.5 threads on both ends to push a part forward on the front stroke while a rear-mounted dog trips a reed switch for timing.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB the Right Cylinder?
When sizing this unit, consider the neighbouring bores: an SDAD32 provides 345.6 N at 0.5 MPa, while an SDAD50 offers 824.7 N.
The through-rod geometry resists twisting and lets you mount a tool on one end while running a dog on the opposite end. Because the -B option is specified, both rod tips feature male M14x1.5 threads. The -S option enables use with AirTAC reed or electronic switches. Note that a plain cylinder drifts when air is lost; use an external rod lock or pilot-operated check valve for load holding. Porting is PT1/8.
Quick checklist
- ✓ Need equal force both directions?
- ✓ Anti-rotation / dual-end mounting?
- ✓ Space for a rod that exits both ends
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rod exiting both ends.
- check Avoid side load on either rod end.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAD Double Rod Slim Cylinder SDAD40X70SB FAQ
The push and pull forces are equal because the rod exits both ends. It generates 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical maximum of 108 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
Yes, the through-rod resists rotation and allows you to mount tooling on one end and a dog on the other. This unit has the -S magnet for AirTAC reed or electronic switches, and the -B option provides male M14x1.5 threads on both rod ends.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC SDAD Cylinders
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