Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø40mm bore and 150mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service. A variable air cushion at both ends lets you tune end-of-stroke deceleration on site.
- BoreØ40 mm
- Stroke150 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke + cushion
- Rod threadM12×1.25
- CushionVariable air cushion, 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 MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S
Rolled around a stainless-steel barrel with riveted aluminium covers, the MACJ40X150-75S is a 40 mm bore round-body mini cylinder that runs double-acting with an extend stroke trimmed anywhere in a 75 mm window by an external stop screw, plus a variable air cushion at both ends. At 0.5 MPa it pushes 628 N and pulls 528 N, working across a 0.15-1.0 MPa (22-145 psi) supply at 30-800 mm/s.
For continuous duty, plan on roughly 377 N of real work at 0.5 MPa rather than the full 628 N rating; mounted vertically, the same rod lifts about 32 kg with a 2:1 margin. The hard-chrome plated carbon-steel rod and stainless tube tolerate washdown splash that swells painted-steel minis, and the standard built-in magnet takes CMSG, DMSG or EMSG switches straight off the shelf.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 mm |
| Acting type | Double acting, adjustable stroke + cushion |
| Port size | 1/8" |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Variable air cushion, both ends |
| Max standard stroke | Up to 500 mm |
Specifications follow the official AirTAC MA-series datasheet. Barrel: stainless-steel tube (round-body, riveted rolling-packed construction); piston rod: carbon steel with 20µm hard-chrome plating; covers: aluminium alloy. Thread options: PT (blank) / G / NPT. Every MA-series cylinder ships with a built-in magnet for CMSG / DMSG / EMSG position sensors.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | 739 N |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -75 | Adjustable stroke window (mm the extend stroke can be shortened on site). |
| -S | Built-in magnet for CMSG / DMSG / EMSG sensors (standard on MA series). |
| CA / U / CM | Back-cover type: CA pivot, U flat-end, CM round-end. |
MA-family variants: MA / MAC (double acting ±cushion), MSA / MTA (single acting push / pull), MAD / MACD (double rod ±cushion), MAJ / MACJ (adjustable stroke ±cushion), MAR (cushioned with integrated F/U mount). Mounting accessories: FA flange, LB foot, SDB pivot; plus I and Y knuckles. Thread PT (blank) / G / NPT.
Where the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S Is Used
Bottling-line reject pusher
Sweeps under-filled bottles off a filler discharge conveyor; the 150 mm reach clears a full lane and the cushion stops the can-crunch at end of stroke.
Case-pack flap folder
Tucks top flaps on a wrap-around case packer, with the 75 mm trim letting line staff set the fold depth without changing cylinders.
Weld-cell sliding door
Opens and closes a robot-cell access slide, where the stainless barrel stands up to grinding dust and coolant mist better than a painted mini.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S the Right Cylinder?
Bore 32 offers 402 N at 0.5 MPa and bore 50 reaches 981 N, so step up if your tooling needs more than about 377 N of working effort, or down for lighter gates. Note that the stop screw is an end stop for the extend stroke, not a brake - if air pressure drops, the piston will still drift, so trap air or add an external stop where position must be held. Mount on an FA flange or LB foot with I or Y rod knuckles as the job demands; the 16 mm rod over 150 mm of travel should be guided externally against side loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ Magnet (-S) is standard for sensors
- ✓ Back cover (CA/U/CM) & mount (FA/LB/SDB)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Do not dismantle the riveted front/back covers.
- check On first run, back off the cushion screws and release gradually.
- check Installation by qualified personnel per AirTAC docs.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-75S FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N; at 0.7 MPa push rises to 880 N and pull to 739 N. The theoretical maximum at 1.0 MPa is 128 kgf. It runs on filtered air at 0.15-1.0 MPa (22-145 psi) with speeds of 30-800 mm/s and a 1/8" port.
No. Every MA-series cylinder ships with the magnet built in as standard, so CMSG, DMSG and EMSG reed or electronic switches clip on at any point along the stainless barrel without a special-order piston.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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