Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75
The AirTAC Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75 is a genuine double-acting COMPACT cylinder (Ø63mm bore) whose extend end-position is set by an external M16×1.5 adjustment screw. You can dial the stroke anywhere from 0 to 75 mm on the machine — no shims, no part change.
- BoreØ63 mm
- Max stroke75 mm
- Adjustable range0–75 mm
- Adjuster threadM16×1.5
- Port sizePT1/4
- 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 SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75
The AirTAC SDAJ63X75-75 is a double-acting compact cylinder featuring an external M16x1.5 adjustment screw that dials the extend stop from 0 to 75 mm directly on your machine. Because the mechanism limits travel rather than altering piston area, output remains identical to a standard SDA of this bore, delivering 1558.6 N of push force at 0.5 MPa.
Its riveted body geometry minimizes axial mounting depth where space is tight, while a fixed NBR bumper at each end absorbs end-of-stroke shock. This specific SKU lacks a piston magnet, so it cannot host reed or electronic switches; choose an -S variant if sensing is required.
Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75 Technical Specifications
| Model | Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75 |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø63 mm |
| Max stroke | 75 mm |
| Adjustable range | 0 – 75 mm |
| Adjuster thread (R) | M16×1.5 |
| Port size | PT1/4 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M10×1.5 F / M18×1.5 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 75 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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 SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 63 | Bore size in mm. |
| ×75 | Maximum stroke length in mm. |
| -75 | 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 SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75 Is Used
Machining Clamp Depth
Dial the extend stop from 0 to 75 mm to accommodate varying raw stock thicknesses on a milling fixture without machining new spacers.
Carton Flap Folding
Adjust the mechanical stop on-site to perfect the fold angle for different box heights, relying on the 1558.6 N push to hold the flap firmly.
Vertical Lift Dwell
Set a precise upper travel limit for a 79.4 kg vertical lift application, using the external screw to tune the exact raise height during commissioning.
Is the Airtac SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75 the Right Cylinder?
When sizing this 63 mm bore, compare its 1558.6 N push at 0.5 MPa against neighbouring bores: the SDAJ50 provides 981.7 N, whereas the SDAJ80 yields 2513.3 N. Based on the 0.5 MPa figure, a safe working load is roughly 935 N (about 60 percent of capacity), translating to a vertical lift capability near 79.4 kg with a 2:1 safety margin.
Select this model if your fixture requires frequent changeovers or trial positioning within the 0-75 mm window. Note that a plain cylinder drifts when air is lost or the valve centers—the fixed bumper only decelerates near the end and is not a lock. For load holding without live pressure, install an external rod lock or pilot-operated check valve. Confirm your bore, 75 mm stroke, 75 mm window, PT1/4 port, female M10x1.5 rod thread, and lack of magnet for this build.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 0–75 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 M16×1.5 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 SDAJ50~63 Adjustable Ultra-Thin Cylinder SDAJ63X75-75 FAQ
This 63 mm bore cylinder features a PT1/4 air port. It generates 1558.6 N push and 1401.5 N pull at 0.5 MPa, 2182.1 N push and 1962.2 N pull at 0.7 MPa, with a theoretical maximum of 318 kgf at 1.0 MPa.
Turning the M16x1.5 screw shortens the extend stop anywhere from 0 to 75 mm. The adjuster sets the mechanical end point and does not alter force. It is not a mid-stroke lock; the cylinder will drift on air loss, so use an external rod lock for holding.
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Related AirTAC SDAJ Cylinders
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