Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20
The AirTAC Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20 is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø50mm bore and 40mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ50 mm
- Full stroke40 mm
- Port sizePT1/4
- Adjuster threadM16×1.5
- 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 Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20
The AirTAC ACQJ50X40-20 is a double-acting JIS compact cylinder featuring an external threaded stop and lock nut that limits the extend stroke. You can fine-tune the extend end position directly on the machine, yielding a usable extend range of 20 to 40 mm. The retract stroke remains completely unaffected by this adjustment.
Because the piston area stays the same, output force is identical to a standard ACQ of this bore, delivering 981.8 N of push at 0.5 MPa. The body incorporates sensor grooves for reed or solid-state switches, though this specific unit ships without a magnet. It relies on a fixed NBR elastomer bumper at each end for end-of-travel deceleration rather than an adjustable air cushion.
Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20 Technical Specifications
| Model | Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20 |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø50 mm |
| Full stroke | 40 mm |
| Adjuster thread | M16×1.5 |
| Port size | PT1/4 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Rod thread | M10×1.5 (F) / M18×1.5 (B) |
Specifications follow the official AirTAC ACQJ datasheet. The adjustable stop shortens the EXTEND stroke only; the piston area — and therefore the force — is the same as a standard ACQ of this bore. Adjustable window options: 10/20/30/40/50/75/100 mm.
Theoretical Output Force (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Force equals a standard ACQ of the same bore — the adjuster changes stroke length, not piston area. Actual usable force is lower due to friction; size with a safety margin.
Model Code: Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | Full stroke length in mm. |
| -0 | Adjustable window in mm (extend stroke can be shortened by up to this). |
| S / B | Magnet (S) / male-thread rod (B); omit for none / female thread. |
Thread: PT standard (G / NPT available). Related: ACQ (fixed stroke), ACQD (double rod), TACQ (guided / non-rotating).
Where the Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20 Is Used
Machining Fixture Clamping
Dial in the exact clamping reach on a CNC fixture during setup, shortening the extend stroke from 40 mm down to 20 mm to accommodate varying part thicknesses without swapping cylinders.
Carton Sealing Stops
Adjust the extend endpoint on the fly during product changeover to match different package sizes on a packaging line, ensuring precise flap folding positions every time.
Assembly Press Positioning
Test and set trial end positions for pressing bearings on an assembly machine, tweaking the stopper nut to find the optimal insertion depth before locking it down.
Is the Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20 the Right Cylinder?
For lighter duties, the 40 mm bore delivers 628.3 N push at 0.5 MPa, while the larger 63 mm bore provides 1558.6 N if your application demands greater thrust. If you never need to alter the extend endpoint, a fixed-stroke ACQ cylinder is the simpler choice. When ordering this adjustable variant, verify the 50 mm bore, 40 mm full stroke, 20 mm window, female M10x1.5 rod end, and PT1/4 port.
Quick checklist
- ✓ Need on-machine end-position tuning?
- ✓ Full stroke and adjust window (mm)
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
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 adjuster nut after setting the stop.
- check The stop limits the EXTEND stroke only.
- check Avoid side load on the short piston rod.
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-20 FAQ
It delivers 981.8 N push and 824.6 N pull at 0.5 MPa, 1374.4 N push at 0.7 MPa, and a maximum push of 200 kgf at 1.0 MPa. The full stroke is 40 mm with a 20 mm adjustable window, giving a usable extend range of 20 to 40 mm. The retract stroke is unaffected.
An external M16x1.5 threaded stop with a lock nut mechanically limits how far the rod extends, shortening the stroke length only. It does not alter the piston area, so output force remains identical to a standard ACQ. End-of-travel deceleration relies on a fixed elastomer bumper, not an adjustable air cushion.
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 ACQJ Compact Cylinders
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