Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S is a genuine double acting, double rod, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 150mm stroke, 1/4" 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.
- BoreØ50 mm
- Stroke150 mm
- Port size1/4"
- Acting typeDouble acting, double rod, adjustable stroke + cushion
- Rod threadM14×1.5
- 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 MACJ50X150-75S
A riveted stainless round barrel and a hard-chromed 16 mm rod give this 50 mm bore MACJ the toughness for wet or dusty cells. It runs double-acting with a variable air cushion at both ends, and an external stop screw trims the extend stroke anywhere within the ordered 75 mm window. At 0.5 MPa the piston pushes 981 N, with air supplied at 0.15-1.0 MPa (22-145 psi) and speeds from 30-800 mm/s.
Keep a reserve and plan on roughly 589 N of dependable working force at 0.5 MPa, enough to shove 50 kg crates along a roller lane all shift. The magnet comes built in as standard, so CMSG, DMSG or EMSG switches snap on for end-of-stroke signalling without a special piston. FA flange and LB foot mounts, plus I and Y rod knuckles, cover most fixturing needs.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 mm |
| Acting type | Double acting, double rod, adjustable stroke + cushion |
| Port size | 1/4" |
| Rod thread | M14×1.5 |
| 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 (Ø50mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 881 N |
| 0.7 MPa | 1234 N |
| Max (@1.0 MPa) | 180 kgf |
MAJ / MACJ are double-rod: the rear rod that carries the stroke adjuster exits the rear cover, so both piston faces lose rod area. The rod-side (annular) area is used for both directions (conservative).
Model Code: Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | 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 (double rod, 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 MACJ50X150-75S Is Used
Carton ejector on a case packer
The 75 mm adjust window lets line staff shorten the push to clear shallow cartons, with 981 N at 0.5 MPa moving loaded cases off the infeed.
Washdown stopper in a dairy plant
Stainless barrel and chrome rod shrug off daily hose-down where painted-steel minis would flake and seize within months.
Glue-head press on a box line
Variable cushions at both ends settle the head onto the flap without bounce, while the built-in magnet drives a CMSG switch for cycle counting.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S the Right Cylinder?
Compare sizes on push force: a 40 mm MACJ reaches 628 N at 0.5 MPa while this 50 mm bore gives 981 N; if 1500 N class is needed, step up to the 63 mm bore at 1558 N. Remember the adjuster is a mechanical extend stop only - on air loss the rod can still drift, so add a locking valve where a position must be held. For a 150 mm stroke keep side loads off the rod or guide them externally, and match FA flange or LB foot mounting to the frame.
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 MACJ50X150-75S FAQ
At 0.5 MPa the 50 mm bore pushes 981 N and pulls 881 N. Supply air between 0.15-1.0 MPa (22-145 psi) and expect speeds of 30-800 mm/s.
An external stop screw shortens the extend stroke to any position inside the ordered 75 mm window - it cannot lengthen travel past the 150 mm order code. Cushioning at both ends stays variable, so you can still tune deceleration after trimming. The stop is a positioning device, not a brake; the piston will drift if air is lost.
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 MACJ Cylinders
Request a Quote for Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X150-75S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.