Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X65-20B
The AirTAC Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X65-20B 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 45 to 65 mm on the machine — no shims, no part change.
- BoreØ32 mm
- Max stroke65 mm
- Adjustable range45–65 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 SDAJ32X65-20B
The AirTAC SDAJ32X65-20B is a double-acting compact cylinder featuring an external adjustable extend stop. By turning the R (M10x1.25) screw, you can shorten the forward stroke on-site, dialling the rod end precisely between 45 and 65 mm without changing parts. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, yielding 402.1 N push at 0.5 MPa.
This variant features a male-threaded piston rod (M10x1.25) for direct mounting and a short riveted body that saves axial depth in tight machinery. It uses a fixed NBR bumper at each end to decelerate the stroke, operating at 30-500 mm/s. Note this SKU lacks a piston magnet, so position sensing is not supported here.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X65-20B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X65-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø32 mm |
| Max stroke | 65 mm |
| Adjustable range | 45 – 65 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 SDAJ32X65-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 32 | Bore size in mm. |
| ×65 | 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 SDAJ32X65-20B Is Used
Tooling Depth Calibration
Dial in the exact 45-65 mm extend position during initial setup on machining fixtures, using the male M10x1.25 rod to thread on custom tool heads without shims.
Changeover Adjustments
Quickly reposition the mechanical stop for different product sizes on a packaging line, leveraging the 402.1 N push force to handle varied actuation tasks.
Trial Positioning Jigs
Fine-tune the extend endpoint dynamically during prototype assembly to find the optimal clamping distance before locking down the sequence.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ32X65-20B the Right Cylinder?
When sizing this 32 mm bore, evaluate your force requirements bidirectionally. Dropping down to an SDAJ25 provides 245.4 N push at 0.5 MPa, whereas stepping up to an SDAJ40 yields 628.3 N push. The 32 mm bore offers a calculated safe working load of roughly 241 N (about 60% of its 402.1 N capacity) and can vertically lift approximately 20.5 kg with a 2:1 safety margin.
Choose this specific male-rod (-B) configuration if your tooling requires an M10x1.25 threaded attachment point. The 20 mm adjust window is ideal for machines needing frequent changeovers or trial positioning. Remember that a plain SDAJ does not hold a load if air pressure drops; the fixed bumper only decelerates near the end of travel. For secure load holding without live pressure, install an external rod lock or pilot-operated check valve. Confirm your requirements for the PT1/8 port, 65 mm max stroke, and 20 mm window before ordering.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 45–65 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 SDAJ32X65-20B FAQ
This 32 mm bore cylinder features a PT1/8 port and delivers 402.1 N push / 345.6 N pull at 0.5 MPa, 563 N push / 483.8 N pull at 0.7 MPa, with a theoretical maximum of 82 kgf at 1.0 MPa.
The R (M10x1.25) screw mechanically shortens the extend stroke from the 65 mm maximum down to 45 mm. It acts only as an end stop and does not alter force or lock mid-stroke. Also, this specific SKU has no magnet (-S omitted), so it cannot support reed or electronic switches.
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