Airtac SDA Ultra Thin Cylinder SDA40X35
The AirTAC Airtac SDA Ultra Thin Cylinder SDA40X35 is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 35mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ40 mm
- Stroke35 mm
- Port sizePT1/8
- Acting typeDouble acting
- 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 SDA Ultra Thin Cylinder SDA40X35
The AirTAC SDA40X35 is a double-acting single-rod compact cylinder delivering 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston and rod into a highly shortened unit, saving substantial axial mounting depth where a conventional round-body actuator would simply not fit.
This specific 40 mm bore configuration incorporates a 16 mm piston rod and PT1/8 air ports. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach or add an external shock absorber for high-energy loads. This base SKU lacks the internal magnet, so it cannot host position sensing switches.
Airtac SDA Ultra Thin Cylinder SDA40X35 Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA40X35 |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| 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 |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SDA Ultra Thin Cylinder SDA40X35
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDA Ultra Thin Cylinder SDA40X35 Is Used
CNC Fixture Clamping
Secures aluminum engine blocks onto machining centers using 628.3 N of extend force, fitting neatly into tight tooling columns.
Carton Flap Folding
Drives mechanical arms to tuck corrugated box flaps at speeds up to 500 mm/s before tape sealing on high-speed packaging lines.
Sorter Diverter Gate
Actuates routing paddles to push parcels weighing up to 32 kg onto secondary chutes in distribution hub logistics.
Is the Airtac SDA Ultra Thin Cylinder SDA40X35 the Right Cylinder?
When sizing this actuator, consider stepping down to the SDA32 which yields 402.1 N of push at 0.5 MPa, or moving up to the SDA50 which provides 981.7 N at the same pressure. For the SDA40X35, a safe working load is roughly 377 N (about 60 percent of the 0.5 MPa push figure), translating to a vertical lift capacity of approximately 32 kg with a 2:1 safety margin.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates near stroke end rather than locking the piston. To hold a load securely without live pressure, an external rod lock or pilot-operated check valve is required. When ordering, confirm the 40 mm bore, 35 mm stroke, PT1/8 port, female rod-end thread (M8x1.25), and the absence of a sensor magnet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA40X35 FAQ
At 0.5 MPa this actuator outputs 628.3 N push and 527.8 N pull. At 0.7 MPa it outputs 879.6 N push and 738.9 N pull. The theoretical maximum push is 128 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion or a braking lock. Because this specific SKU lacks the internal magnet, it cannot support reed or electronic switches; you would need the -S variant for position feedback.
Authorized Export Seller
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.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SDA Ultra Thin Cylinder SDA40X35
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.