Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B
The AirTAC Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B is a genuine double-acting COMPACT (JIS) cylinder with an EXTERNAL adjustable stop on the extend stroke — a Ø80mm bore and 50mm full stroke. Turn the stop to fine-tune the end position on the machine without changing parts.
- BoreØ80 mm
- Full stroke50 mm
- Port sizePT3/8
- Adjuster threadM20×1.5
About the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B
The AirTAC ACQJ80X50-40B is a double-acting JIS compact cylinder featuring an external M20x1.5 threaded stop with a lock nut on the rod-end side. This mechanism limits the extend travel, providing a usable forward range of 10-50mm from the 50mm full stroke, while the retract stroke remains unaffected. It utilizes a PT3/8 port and a Ø25mm piston rod with a male M22x1.5 thread for direct load coupling.
Because the adjuster only restricts travel length and not the piston area, the output force is identical to a standard ACQ of the same bore. The cylinder delivers 2513.2N push and 2267.8N pull force at 0.5 MPa, and operates reliably within a 0.15-1.0 MPa pressure range. Fixed NBR elastomer bumpers at both ends absorb end-of-stroke energy, and the body includes sensor grooves for adding external reed or solid-state switches.
Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B Technical Specifications
| Model | Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B |
|---|---|
| Series | ACQJ JIS compact adjustable-stroke cylinder |
| Bore size | Ø80 mm |
| Full stroke | 50 mm |
| Adjuster thread | M20×1.5 |
| Port size | PT3/8 |
| 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 | M16×2.0 (F) / M22×1.5 (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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B
| ACQJ | JIS compact double-acting ADJUSTABLE-STROKE cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×50 | 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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B Is Used
Machining Fixture Calibration
Dial in the exact clamping reach on a CNC fixture without machining new spacers, shortening the extend stroke by up to 40mm to accommodate varying part heights.
Product Changeover Stops
Adjust the mechanical end stop position rapidly during packaging line format changes, allowing the 80mm bore to push 2513.2N of sorting force across different carton sizes.
Press Trial Positions
Test multiple engagement depths on an assembly press by turning the external M20x1.5 adjuster, finding the optimal 10-50mm contact point before finalizing the mechanical setup.
Is the Airtac ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B the Right Cylinder?
For 0.5 MPa pneumatic setups, this 80mm bore yields 2513.2N push force. If your application requires less thrust, stepping down to a 63mm bore provides 1558.6N push, whereas moving up to a 100mm bore offers 3927.0N. A fixed-stroke ACQ is sufficient if your endpoint never varies, but this ACQJ variant is necessary when 10-50mm of on-the-fly extend tuning is required. Confirm your ordering essentials: 80mm bore, 50mm full stroke, 40mm window, male rod thread (-B), and no magnet.
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 ACQJ80-100 Adjustable Compact Cylinder ACQJ80X50-40B FAQ
The usable extend range is 10-50mm (50mm full stroke minus the 40mm window). It generates 2513.2N push and 2267.8N pull force at 0.5 MPa, 3518.5N push at 0.7 MPa, and a maximum push of 513 kgf at 1.0 MPa.
No, the external threaded stop only limits the extend travel distance, so the force remains identical to a standard ACQ. The cylinder uses fixed NBR elastomer bumpers at each end for deceleration rather than adjustable air cushions.
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Standard models usually ship in 3-4 days.
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Related AirTAC ACQJ Compact Cylinders
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