Airtac SDAD Double Rod Slim Cylinder SDAD20X45SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD20X45SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø20mm bore, 45mm 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.
- BoreØ20 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM4×0.7 (F) / M6×1.0 (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 SDAD20X45SB
The AirTAC SDAD20X45SB 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, delivering an equal push and pull force of 131.9 N at 0.5 MPa. This symmetry is essential when driving loads that must remain balanced in both directions.
This specific configuration includes a built-in magnet for position sensing and male M6x1.0 rod threads on each end. The short body design drastically reduces axial mounting depth compared to standard profile cylinders. End-of-stroke deceleration is handled by fixed NBR bumpers, which absorb shock but do not act as an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD20X45SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD20X45SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø20 mm |
| Stroke | 45 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 90 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 (Ø20mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 132 N |
| 0.7 MPa | 185 N |
| Max (@1.0 MPa) | 27 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 SDAD20X45SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 20 | Bore size in mm. |
| ×45 | 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 SDAD20X45SB Is Used
Symmetrical Transfer
Pushes and pulls a light fixture with identical 131.9 N force, ensuring precise positioning without momentum shifts.
Dual-End Tooling
Drives a small stamping head on the male M6 rod front while a dog triggers a sensor on the rear for cycle confirmation.
Anti-Rotation Guide
Handles a flat panel pick-and-place task where the twin 8mm rods prevent the gripper from twisting during transit.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD20X45SB the Right Cylinder?
When sizing this 20mm bore unit, consider the neighbouring bores: stepping down to SDAD16 yields 86.4 N at 0.5 MPa, while moving up to SDAD25 provides 206.2 N at 0.5 MPa. Based on the 131.9 N output, your safe working load is approximately 79 N, allowing a vertical lift of about 6.7 kg with a 2:1 safety margin. The through-rod geometry resists twisting and permits mounting a tool on one end with a dog on the opposite end.
This model has a 45mm stroke, an M5x0.8 port, and operates at 30-500 mm/s. It includes the -S magnet for AirTAC reed or electronic switches and the -B option for male M6x1.0 rod threads. Remember that a plain cylinder drifts when air is lost or the valve is centred; use an external rod lock or pilot-operated check valve for load holding.
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 SDAD20X45SB FAQ
Because the rod exits both ends, push and pull forces are equal. It generates 131.9 N at 0.5 MPa and 184.7 N at 0.7 MPa. The theoretical maximum is 27 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod design allows you to attach a tool to the male M6x1.0 thread on one end and mount a dog on the opposite end. The built-in magnet works with AirTAC reed or electronic switches in the body grooves.
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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.
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