The AirTAC AirTAC SDA100X40SB Compact Cylinder | 100mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø100mm bore and 40mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA100X40SB is a double-acting, single-rod compact cylinder engineered for heavy-duty automation within a minimal axial footprint. By utilizing a riveted assembly that merges the barrel, rear cover, piston, and rod, this unit achieves a remarkably short overall length compared to conventional round-body designs. It generates a substantial 3927 N push force at 0.5 MPa, utilizing a hard-anodized 100 mm bore and a two-way piston seal for reliable operation.
This specific configuration includes an S option for the built-in piston magnet, enabling position detection via an AirTAC reed or electronic switch fitted into the body grooves. The B option equips the unit with a male M26x1.5 threaded piston rod end for robust load coupling. Stopping is managed by a fixed NBR bumper at each end, which decelerates the mechanism near stroke completion rather than acting as an adjustable air cushion or a locking device.
| Model | AirTAC SDA100X40SB Compact Cylinder | 100mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M18×1.5 female / M26×1.5 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).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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).
Drives heavy stamping pins in an automotive body panel line, utilizing the 3927 N push force to seat metal components securely before robotic welding.
Indexes empty wooden pallets into a high-speed packaging conveyor, where the short riveted body conserves floor space and the male M26x1.5 rod couples tightly to the pusher plate.
Applies localized corrective pressure to bend thick steel plates in a metal fabrication shop, relying on the fixed NBR bumper to absorb the impact at the end of the 40 mm stroke.
When sizing this 100 mm bore actuator, evaluate your force requirements carefully. Stepping down, the SDA80 provides 2513.3 N of push force at 0.5 MPa, which may suffice for lighter duties. The SDA100X40SB itself delivers 3927 N at 0.5 MPa, offering a safe working load of roughly 2356 N (about 60 percent of capacity) and a vertical lift capability of approximately 200.2 kg with a 2:1 safety margin. Since 100 mm is the largest available bore in this series, exceeding this capacity requires a different cylinder family.
Confirm your ordering essentials: 100 mm bore, 40 mm stroke, PT3/8 air ports, the S magnet option, and the B male-thread rod end (M26x1.5). Remember that a standard compact cylinder does not hold its position if air pressure is lost or the valve is centered; the piston will drift. If your application demands load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder delivers a push force of 3927 N and a pull force of 3524.9 N at 0.5 MPa. At 0.7 MPa, the push force is 5497.8 N. The theoretical maximum push force is 801 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not a field-adjustable air cushion; for high energy impacts, add an external shock absorber. Additionally, the B option specifies a male M26x1.5 piston rod thread, overriding the default female M18x1.5 thread.
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