Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-75S
The AirTAC MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-75S 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 MACJ50X175-75S
Few mini cylinders let you re-range the extend stroke by 75 mm with a screwdriver, but the MACJ50X175-75S does exactly that.
The stainless round barrel and 20 um hard-chrome rod suit outdoor and food splash zones where painted minis rust through.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-75S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-75S |
|---|---|
| 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 MACJ50X175-75S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×175 | 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 MACJ50X175-75S Is Used
Attachment lock pin
A 175 mm pin pull on a forklift attachment needs about 589 N of real force; the 75 mm window lets one cylinder serve several pin spacings.
Bottle-capper head
Lower a capper onto 330 ml bottles; cushions at both ends stop the head tapping caps at the bottom of each 175 mm drop.
Grain-sampler probe
Drive a sampling probe into sacks outdoors; the stainless body and chrome rod shrug off dust and weather that ruin painted minis.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X175-75S the Right Cylinder?
Compare before you buy: a bore 40 MA pushes about 628 N at 0.5 MPa and saves space, while a bore 63 pushes 1558 N when you need headroom. The 180 mm-class body keeps weight low, and the 1/4" port feeds the cushion chambers. Fit the FA flange or LB foot to suit the frame, and choose I or Y knuckles for pivoting loads.
Keep in mind the adjuster is a mechanical extend stop, not a mid-stroke lock; without air the rod can drift, so add a locking valve where a suspended load must stay put.
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 MACJ50X175-75S FAQ
It runs on 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s, and the extend stroke can be shortened anywhere in a 75 mm window with both-end variable cushions.
No. The stop screw fixes the extend endpoint only; it is not a brake. On air loss the piston will still move under load, so use a valve with a locked center or an external mechanical stop for holding duties.
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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