Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-50S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-50S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 500mm 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
- Stroke500 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 MACJ50X500-50S
Needing a full half metre of travel with mid-range muscle, this 50 mm bore pushes 981.3 N at 0.5 MPa and 1373.8 N at 0.7 MPa over a 500 mm stroke. The stop screw shortens the extend stroke by up to 50 mm without touching the machine, while variable cushions at both ends tame end-of-stroke shock.
Its round stainless barrel and 20 um hard-chrome rod stand up to humidity and light washdown where painted minis corrode. A magnet comes built in on every cylinder, letting CMSG / DMSG / EMSG switches mount with no special piston. For sizing, treat it as roughly 589 N of usable push at 0.5 MPa - about 50 kg lifted vertically with a 2:1 margin.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-50S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-50S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 MACJ50X500-50S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×500 | 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 MACJ50X500-50S Is Used
Lab test rig actuators
Driving a wear-test sled through 500 mm cycles at controlled speed, with the 50 mm window letting technicians shorten travel between specimen sizes.
Carton erecting pushers
Swinging case blanks into the erecting head; 981 N at 0.5 MPa seats each blank squarely while the cushion ends the stroke quietly.
Battery changer guides
Guiding forklift battery packs onto charge stands, with an EMSG switch confirming full extension via the built-in magnet.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X500-50S the Right Cylinder?
Compare forces before committing: the 40 mm bore offers 628.3 N at 0.5 MPa and the 63 mm bore offers 1557.9 N, so this 50 mm size covers the middle ground around 981 N. The adjustable stop sets the extend position only - under a power loss the rod can still drift, so it is not a substitute for a locking valve. Choose FA flange or LB foot mounting, add I or Y rod knuckles if the load pivots, and keep side loads off the 16 mm rod across the long 500 mm travel.
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 MACJ50X500-50S FAQ
This bore reads 981.3 N push and 880.8 N pull at 0.5 MPa, climbing to 1373.8 N and 1233.1 N at 0.7 MPa. At the full 1.0 MPa (145 psi) the theoretical ceiling is 200.1 kgf. Proof pressure is 1.5 MPa (215 psi).
An external stop screw shortens the extend stroke anywhere within 50 mm of the rated 500 mm - useful for tuning product sizes without re-piping. It trims stroke length only; it is not a mid-stroke brake, and the piston will still move if air is lost. Double-acting drive and a variable cushion at each end remain unchanged.
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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