The AirTAC AirTAC SDA25X35H Compact Cylinder | 25mm Bore FKM is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 35mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA25X35H is a double-acting, single-rod compact cylinder engineered with a 25 mm bore and 35 mm stroke. Its riveted assembly merges the barrel, rear cover, piston, and rod to drastically reduce axial mounting depth, offering a distinct footprint advantage over round-body units in tight machinery. Equipped with a fluororubber (FKM) seal, it provides superior heat and oil resistance compared to standard NBR, making it well-suited for harsher industrial environments.
This model generates 245.4 N of push force and 206.2 N of pull force at 0.5 MPa. The hard-anodized bore ensures longevity, while a fixed NBR bumper at each end absorbs end-stop impact. Note that this specific SKU lacks a piston magnet, so it cannot support position sensing without upgrading to the -S variant. The bore dictates an M5x0.8 port and a 10 mm rod, and the fixed bumper is not an adjustable air cushion.
| Model | AirTAC SDA25X35H Compact Cylinder | 25mm Bore FKM |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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. |
|---|---|
| 25 | 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).
Utilizes the 35 mm stroke and FKM seals to eject small plastic parts from heated molds, where the compact riveted body minimizes interference with the press platen.
Employs the 245.4 N push force at 0.5 MPa to actuate lightweight routing flaps on high-speed packaging lines, safely absorbing end-stop impacts via the fixed NBR bumper.
Clamps sensitive laboratory samples with a calculated 147 N safe working load, leveraging the 10 mm rod and space-saving design inside crowded analytical equipment.
When sizing this actuator, stepping down to the SDA20 reduces the 0.5 MPa push force to 157.1 N, whereas stepping up to the SDA32 increases it to 402.1 N. Based on the 245.4 N output at 0.5 MPa, the computed safe working load is roughly 147 N (about 60% capacity), translating to a vertical lift capability of approximately 12.5 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and does not function as a locking brake. To hold a load safely, integrate an external rod lock or a pilot-operated check valve. To order, confirm the 25 mm bore, 35 mm stroke, M5x0.8 port, FKM seal, female rod-end thread, and no magnet.
Quick checklist
This 25 mm bore double-acting cylinder provides 245.4 N push and 206.2 N pull at 0.5 MPa, and 343.6 N push at 0.7 MPa. The theoretical maximum push force is 50 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, has a proof pressure of 1.5 MPa, and runs at speeds of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot support reed or electronic switches. You would need to specify the -S option to add a magnet for sensing. Additionally, it relies on a fixed NBR bumper for end-stop deceleration, which is not a field-adjustable air cushion.
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