The AirTAC AirTAC SDA20X30H Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 30mm 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 SDA20X30H is a double-acting, single-rod compact cylinder engineered with a short riveted body that significantly reduces axial mounting depth compared to round-body alternatives. Operating at 0.5 MPa, it generates 157.1 N of push force and 131.9 N of pull force. This specific H-suffix variant utilizes fluororubber (FKM) seals for enhanced thermal and oil resistance, maintaining an operating range of -20 to +70 C.
This model features an 8 mm piston rod and M5x0.8 air ports. Instead of an adjustable air cushion, it relies on a fixed NBR bumper at each end to decelerate the stroke. Because this SKU lacks the -S magnet option, it cannot directly host AirTAC reed or electronic switches. The piston travels at speeds between 30 and 500 mm/s.
| Model | AirTAC SDA20X30H Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| 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 |
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 | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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. |
|---|---|
| 20 | Bore size in mm. |
| ×30 | 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).
Actuates a routing blade to singulate printed circuit boards, where the short 30 mm stroke and compact footprint fit neatly within dense electronics assembly machinery.
Provides the 157.1 N push force required to close small blister packaging dies, leveraging FKM seals to withstand occasional thermal exposure from sealing heaters.
Drives a precision dosing valve for chemical reagents, using the 8 mm rod to dispense fluids accurately while the fluororubber seals resist oil-based media.
When sizing this actuator, evaluate your neighbors: stepping down to the SDA16 yields 100.5 N of push at 0.5 MPa, while stepping up to the SDA25 provides 245.4 N. For the SDA20X30H specifically, the safe working load is approximately 94 N (about 60% of the 157.1 N figure), allowing a vertical lift of roughly 8 kg with a 2:1 safety margin. Confirm your ordering essentials: 20 mm bore, 30 mm stroke, FKM seals, female M4x0.7 rod thread, and no sensor magnet.
Keep in mind that a standard compact cylinder does not hold its position if air pressure drops or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a lock. If your application requires maintained load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 20 mm bore double-acting cylinder outputs 157.1 N push and 131.9 N pull at 0.5 MPa. At 0.7 MPa, push increases to 219.9 N. The theoretical maximum push is 32 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and travels at speeds of 30-500 mm/s.
No, this specific SKU does not include the -S piston magnet, so it cannot host AirTAC reed or electronic switches. You would need to specify the -S option to enable sensing. Additionally, it uses a fixed NBR bumper rather than an adjustable cushion, so external shock absorbers are recommended for high-energy loads.
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