Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 75mm 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
- Stroke75 mm
- Port size1/4"
- Acting typeDouble acting, 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 MACJ50X75-50S
A 100 kgf-class bore in a compact round package: at 0.5 MPa the MACJ50X75-50S pushes 981 N and pulls 881 N, with extend travel adjustable over a generous 50 mm window via the external stop screw. The variable cushion at each end is tuned with a screwdriver, letting you run anywhere from 30 to 800 mm/s without hammering the covers. Stainless barrel, riveted aluminium caps and a 20 um chrome-plated rod stand up to humidity and light washdown.
For sizing, treat 589 N as the practical force at 0.5 MPa - about 50 kg lifted vertically with a 2:1 margin. Position feedback needs no options: the magnet is standard, so CMSG, DMSG or EMSG switches mount directly on the barrel. Proof pressure is 1.5 MPa (215 psi) and temperature range is -20 to +70 C.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 mm |
| Acting type | Double acting, 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 | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 881 N |
| 0.7 MPa | 1374 N | 1234 N |
| Max (@1.0 MPa) | 200 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 MACJ50X75-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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 (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 MACJ50X75-50S Is Used
Reject kicker at checkweigher
Kicks underweight packs off a checkweigher belt; the 50 mm window suits varied product widths without changing hardware.
Spot-weld jig clamp
Holds steel brackets in a spot-welding jig, the stainless barrel coping with coolant mist around the cell.
Glue head depth set
Positions a hot-melt glue head against carton seams, the stop screw re-set per carton size inside the window.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X75-50S the Right Cylinder?
Between the 628 N of a 40 mm bore and the 1558 N of a 63 mm bore, this 50 mm unit at 981 N covers the heavy-mini band. The wide 50 mm window means one cylinder can serve several die or fixture variants without re-plumbing. Do not rely on the stop screw to hold position - under air loss the piston still drifts, so add a valve or external stop where holding matters. FA flange or LB foot mounting, PT / G / NPT thread options, and switches from the CMSG / DMSG / EMSG range complete the package.
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 MACJ50X75-50S FAQ
Design around 981 N push and 881 N pull at 0.5 MPa, or 1374 N and 1233 N at 0.7 MPa. At 1.0 MPa the theoretical force peaks at 200 kgf. The cylinder runs on 0.15-1.0 MPa (22-145 psi) and withstands 1.5 MPa (215 psi) proof.
Body mounting is FA flange or LB foot, and I or Y rod knuckles are available for linkages. Port threads come as PT (blank code), G or NPT, all in 1/4" at this bore. The adjustable-stroke version carries no SDB or back-cover code in its ordering string.
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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