Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B is a genuine double-acting COMPACT cylinder (Ø32mm bore) whose extend end-position is set by an external M10×1.25 adjustment screw. You can dial the stroke anywhere from 25 to 45 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke45 mm
- Adjustable range25–45 mm
- Adjuster threadM10×1.25
- Port sizePT1/8
- 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 SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B
The AirTAC SDAJ32X45-20B is a compact double-acting single-rod cylinder featuring an external adjustable extend stop. By turning the R (M10x1.25) screw, you shorten the forward stroke by up to 20 mm directly on the machine, yielding a usable extend range of 25 to 45 mm without swapping shims or components. Retract remains full length. Because the adjuster dictates the mechanical stop rather than the piston area, output force equals a standard SDA of this bore, delivering about 402.1 N push at 0.5 MPa.
This variant uses a male-threaded M10x1.25 piston rod and lacks a piston magnet, so it cannot host reed or electronic switches. The short riveted body minimizes axial mounting depth where space is tight, while a fixed NBR bumper decelerates the stroke end. Note that the bumper is not an adjustable air cushion, and the mechanical stop is not a mid-stroke lock.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 45 mm |
| Adjustable range | 25 – 45 mm |
| Adjuster thread (R) | M10×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M6×1.0 F / M10×1.25 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.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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).
Where the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B Is Used
Tooling Depth Calibration
Dial the M10x1.25 stop screw to set precise 25-45 mm extend positions during initial fixture setup, avoiding part changes when tuning the 402.1 N push force.
Product Changeover Lines
Quickly adjust the mechanical end stop for different package heights on a conveyor, leveraging the compact riveted body to fit tight changeover stations.
Trial Positioning Rigs
Use the 20 mm adjustment window to safely test multiple extend endpoints for a new process, relying on the fixed NBR bumper to absorb the 563 N @0.7 MPa impact.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B the Right Cylinder?
When sizing this 32 mm bore, compare it both ways: stepping down to an SDAJ25 yields 245.4 N push at 0.5 MPa, whereas stepping up to an SDAJ40 provides 628.3 N. At 0.5 MPa this SDAJ32 delivers 402.1 N push and 345.6 N pull, translating to a safe working load of roughly 241 N (about 60 percent of capacity) or a vertical lift of approximately 20.5 kg with a 2:1 margin.
Choose this male-rod (M10x1.25) configuration when your tooling requires a threaded attachment point. Confirm your setup needs the 25-45 mm on-machine tuning window and the PT1/8 port. Remember that a plain cylinder drifts when air is lost or the valve centers; the fixed bumper only absorbs end shock. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 25–45 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the M10×1.25 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X45-20B FAQ
This 32 mm bore cylinder uses a PT1/8 port. It generates 402.1 N push and 345.6 N pull at 0.5 MPa, 563 N push and 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
The external R (M10x1.25) screw mechanically shortens the extend stroke from the 45 mm maximum down to 25 mm without changing the force. This specific SKU lacks the -S magnet, so it cannot accept reed or electronic switches; choose the -S variant for sensing.
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