Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20B
The AirTAC SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20B is a genuine double-acting COMPACT cylinder (Ø40mm bore) whose extend end-position is set by an external M12×1.25 adjustment screw. You can dial the stroke anywhere from 45 to 65 mm on the machine — no shims, no part change.
- BoreØ40 mm
- Max stroke65 mm
- Adjustable range45–65 mm
- Adjuster threadM12×1.25
- 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 SDAJ40X65-20B
The AirTAC SDAJ40X65-20B is a compact double-acting cylinder featuring a male-thread M14x1.5 piston rod and an external extend stop. An M12x1.25 adjuster screw lets you dial the forward end-position between 45 and 65 mm directly on the machine, eliminating the need for shims or part swaps.
Built with a short riveted body, this unit saves axial mounting depth where round-body or profile cylinders cannot fit. It uses a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to the -S variant.
Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20B Technical Specifications
| Model | Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø40 mm |
| Max stroke | 65 mm |
| Adjustable range | 45 – 65 mm |
| Adjuster thread (R) | M12×1.25 |
| Port size | PT1/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M8×1.25 F / M14×1.5 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. SDAJ is a double-rod cylinder. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 kgf | |
SDAJ is double-rod: the rear rod that carries the stroke adjuster passes through the rear cover, so both piston faces lose rod area. Push is shown at the annular-area value (conservative), lower than a single-rod SDA push of the same bore. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 40 | 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 SDAJ40X65-20B Is Used
Trial Positioning Jigs
Dial the extend stop from 45 to 65 mm during prototype runs to find the exact contact point for a 32 kg vertical lift without machining new spacers.
Compact Assembly Stations
Utilize the short riveted body to fit within tight axial envelopes while using the male M14x1.5 rod to mount custom tooling securely.
Is the Airtac SDAJ32~40 Adjustable Super Slim Cylinder SDAJ40X65-20B the Right Cylinder?
When sizing this 40 mm bore, consider the neighboring options. Choose this model if your fixture requires frequent on-site stroke tuning or changeover adjustments.
Confirm your requirements for the 65 mm maximum stroke, the 20 mm adjustment window, and the PT1/8 port. This SKU includes the -B option, meaning the rod end is male M14x1.5 rather than the default female thread. Remember that a plain cylinder does not hold position if air pressure drops or the valve is centered; for load holding without live pressure, install an external rod lock or a pilot-operated check valve.
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 M12×1.25 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 SDAJ40X65-20B FAQ
The air port is PT1/8.
The M12x1.25 screw acts as a mechanical stop, allowing you to shorten the extend stroke anywhere between 45 and 65 mm without changing the force. It is not a mid-stroke lock; the cylinder cannot hold a load if air is lost, so use a pilot-operated check valve for holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAJ Cylinders
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