The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X20-20 is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 0 to 20 mm on the machine — no shims, no part change.
The AirTAC SDAJ100X20-20 is a double-acting compact cylinder featuring an external adjustable extend stop. By turning the R (M27x2.0) screw, you dial the outward stroke from 0 to 20 mm directly on the machine without shims or part changes. Retract remains full, and the mechanical stop sets the end position without altering the pneumatic area.
Force stays identical to a standard 100 mm bore SDA, giving you 3927 N push at 0.5 MPa. The short riveted body drastically saves axial mounting depth where round-body or profile units will not fit. End shock is handled by a fixed NBR bumper, not an adjustable air cushion.
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X20-20 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 20 mm |
| Adjustable range | 0 – 20 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 male (B) |
| 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) |
The adjustment screw shortens the extend stroke by up to 20 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×20 | Maximum stroke length in mm. |
| -20 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = magnet; B = male-thread rod (both optional). |
Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).
Dial the 0-20 mm extend stop to seat heavy bearings precisely, leveraging the 3927 N push force without over-travel.
Secure large castings in tight machinery envelopes where the compact riveted body saves critical axial mounting depth.
Quickly readjust the outward mechanical stop during product changeovers on the line, avoiding teardown or shim swaps.
When sizing this unit, compare both ways: an SDAJ80 provides 2513.3 N push at 0.5 MPa, while this 100 mm bore yields 3927 N. With a 2:1 safety margin, this larger bore achieves a vertical lift of roughly 200.2 kg and a safe working load around 2356 N. Choose this model if your fixture requires heavy push force but minimal extended depth.
On-machine stroke tuning is ideal for heavy setup lines needing precise end positioning. Note that a plain cylinder does not hold its load on air loss or valve centring; the piston drifts. For load holding without live pressure, install an external rod lock or pilot-operated check valve. This SKU lacks a magnet (no -S) and cannot take a switch. It uses a PT3/8 port, a 32 mm rod, and a female M18x1.5 rod-end thread.
Quick checklist
This 100 mm bore double-acting cylinder delivers 3927 N push and 3524.9 N pull at 0.5 MPa, 5497.8 N push and 4934.8 N pull at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa.
The R (M27x2.0) screw mechanically shortens the extend stop by up to 20 mm, giving a usable outward range of 0-20 mm. It sets the end position without changing the force, and retract remains full.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.