Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-50S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-50S is a genuine double acting, double rod, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 175mm 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
- Stroke175 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 MACJ50X175-50S
An external stop screw trims the extend stroke anywhere within a 50 mm window on the MACJ50X175-50S, so one cylinder can be re-ranged on the machine without re-ordering. It is double-acting, carries a variable air cushion at both ends, and at 0.5 MPa it pushes about 981 N while pulling 881 N.
The riveted round body pairs a stainless-steel barrel with a hard-chrome plated 16 mm carbon-steel rod, so it shrugs off washdown and damp shop air far better than painted-steel minis.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 175 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 MACJ50X175-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×175 | Stroke length in mm. |
| -50 | 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 MACJ50X175-50S Is Used
Carton strapping head
The 175 mm stroke advances a strapping or taping head across a carton; dual cushions settle the head without knocking the frame at cycle end.
Bakery tray divider
Roughly 589 N of working force at 0.5 MPa parts sticky dough trays on a washdown line, where the stainless barrel resists daily hose-down.
Spring fatigue rig
Dial the extend stop within the 50 mm window to repeat 175 mm cycles on a test rig, with the magnet feeding CMSG end-of-stroke signals.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-50S the Right Cylinder?
At 175 mm on a 16 mm rod, keep side loads off the rod or add external guides to avoid bending. Mount with the FA flange or LB foot, add I or Y rod knuckles where the load pivots, and the built-in magnet accepts CMSG, DMSG or EMSG switches as standard.
Note that the stop screw only sets the extend position; it is not a load-holding device, so the rod can still move if air pressure is lost.
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 MACJ50X175-50S FAQ
At 0.5 MPa it pushes 981 N and pulls 881 N; at 0.7 MPa those rise to 1374 N and 1233 N. The theoretical maximum is about 200 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi), speed 30-800 mm/s, and the extend stroke is adjustable within a 50 mm window with variable cushions at both ends.
It is a rolling-packed round body: a stainless-steel tube with riveted aluminium-alloy covers and a hard-chrome plated 16 mm carbon-steel rod, with 1/4" air ports. Every unit ships with the magnet already built in, so CMSG, DMSG or EMSG switches clip on without a special-order piston.
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.
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