Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-30S 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 MACJ40X150-30S
For stop-position tweaking without changing hardware, the MACJ40X150-30S offers a 30 mm extend-trim window on a 150 mm stroke. This 40 mm bore double-acting cylinder pushes 628.3 N and pulls 527.8 N at 0.5 MPa; at 0.7 MPa those figures climb to about 880 N and 739 N. Halve the lift equivalent and you can hang about 32 kg vertically while keeping a 2:1 force margin.
Its stainless round barrel, hard-chrome rod and rolled aluminium covers shrug off splash and mild corrosion in food-adjacent or outdoor machinery. Variable air cushions at each end absorb shock so you can run the stroke faster than a bumper-only mini would allow, and the standard magnet accepts CMSG / DMSG / EMSG switches for position feedback.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-30S |
|---|---|
| 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 MACJ40X150-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 40 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -30 | 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 MACJ40X150-30S Is Used
Carton tucking on a case packer
The 628 N push seats flaps at 0.5 MPa, and the 30 mm window lets technicians retune tuck depth whenever carton sizes change on the line.
Kick cylinder for scrap chutes
Flicking rejects off a stamping die chute draws on only part of the roughly 880 N available at 0.7 MPa, leaving reserve for sticky or heavy scrap.
Lid lift on a curing tank
Raising an aluminium lid of about 30 kg vertically stays inside a 2:1 margin against the 628 N push rating of this bore.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ40X150-30S the Right Cylinder?
Size against neighbours: a 25 mm MACJ pushes 245.3 N at 0.5 MPa and a 50 mm bore reaches 981.3 N, so the 40 mm class suits loads in the 300-600 N band. The -30 stop screw is a stroke end stop, not a mid-stroke clamp - under air loss the rod can creep, so pilot a check or shut-off valve if holding position matters. Pick FA flange or LB foot mounting, add I or Y knuckles where the linkage pivots, and bolt a CMSG switch to the standard magnet for feedback. For long 150 mm strokes, keep the load guided to protect the 16 mm rod from bending.
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 MACJ40X150-30S FAQ
Bore 40 mm, stroke 150 mm, adjustable window 30 mm. Push 628.3 N and pull 527.8 N at 0.5 MPa; push 879.6 N and pull 738.9 N at 0.7 MPa; theoretical peak 128.1 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa (22-145 psi) and speed 30-800 mm/s.
No. The stop screw only fixes where the extend stroke terminates; with pressure gone the piston is free to move, so use a blocking or pilot-operated check valve for true load holding. Mounting choices are FA flange or LB foot, with I and Y rod knuckles available.
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1-Year Warranty
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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