Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-40B
The AirTAC Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-40B 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 ACQJ50X40-40B
The AirTAC ACQJ50X40-40B is a double-acting JIS compact cylinder featuring a male-thread piston rod (M18x1.5) that couples directly to your load. An external M16x1.5 threaded stop with a lock nut limits the extend end position, providing a usable extend range of 0-40 mm. The retract stroke remains completely unaffected by this adjustment.
Because the piston area is unchanged, the force output is identical to a standard ACQ of the same bore, delivering 981.8 N push and 824.6 N pull at 0.5 MPa. The unit relies on a fixed NBR elastomer bumper at each end for deceleration and includes sensor grooves, though this specific configuration ships without a magnet. Operating pressure spans 0.15-1.0 MPa, with a maximum standard stroke capacity of 100 mm for this bore size.
Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-40B Technical Specifications
| Model | Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-40B |
|---|---|
| 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 ACQJ50X40-40B
| 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 ACQJ50X40-40B Is Used
Machining Fixture Stops
Dial in the exact extend position for varying part heights on a CNC machining center without machining new spacer blocks.
Packaging Changeover
Rapidly adjust the end-of-stroke tamping position on a packaging line when switching between different carton sizes.
Assembly Press Trials
Safely test and incrementally increase the extend depth on an assembly press during new product process validation.
Is the Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-40B the Right Cylinder?
When sizing this 50 mm bore cylinder, consider the 40 mm bore option (628.3 N push @0.5 MPa) if your load is lighter, or the 63 mm bore (1558.6 N push @0.5 MPa) for heavier demands. If your extend position never varies, a fixed-stroke ACQ cylinder is sufficient and simpler. To order correctly, confirm the 50 mm bore, 40 mm full stroke, 40 mm adjustable window, the male -B rod thread, and whether you need the -S magnet option for reed or solid-state switches.
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 ACQJ50X40-40B FAQ
It provides 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 usable extend range is 0-40 mm, meaning the 40 mm full stroke can be shortened by up to 40 mm.
No, the adjuster only changes the extend stroke length, not the piston area, so force remains identical to a standard ACQ. The cylinder uses a fixed elastomer bumper for deceleration and does not hold loads on air loss; for fail-safe holding, use an external rod lock.
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
Request a Quote for Airtac Adjustable Compact Cylinder ACQJ50~63 ACQJ50X40-40B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.