Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X30-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X30-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 30mm 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
- Stroke30 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 MACJ50X30-30S
Short 30 mm travel with a full 30 mm trim window: the stop screw can set the extend stroke anywhere within the range, making this a flexible punch, clamp or ejector actuator. Double-acting with a variable air cushion at each end, it pushes 981 N and pulls 881 N at 0.5 MPa (72 psi), and the cushion soaks up the shock of short, fast blows at speeds up to 800 mm/s.
At 0.5 MPa (72 psi) about 589 N of that thrust is a comfortable working figure once a margin is applied. The body is a rolling-packed stainless round tube with aluminium covers and a hard-chrome plated rod, and it carries no tie-rods to loosen in damp, food-area or outdoor locations. Every cylinder ships with the magnet installed, so CMSG, DMSG or EMSG switches clip straight on.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X30-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X30-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 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 MACJ50X30-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| -30 | 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 MACJ50X30-30S Is Used
Short-stroke marking press
Stamps date codes on 150 mm aluminium housings; 1374 N push at 0.7 MPa (102 psi) gives a crisp impression while cushions mute the impact.
Hopper gate on a spice filling line
Opens and closes a slide gate every cycle; the 30 mm window matches gate travel exactly, and washdown-friendly stainless suits the area.
Ejector on a plastics trimming fixture
Kicks trimmed sprues off the die; the standard piston magnet with a CMSG switch confirms each ejection for the PLC.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X30-30S the Right Cylinder?
For a 30 mm throw, compare the 40 mm bore at 628 N push (0.5 MPa, 72 psi) against this 50 mm at 981 N, or step to the 63 mm bore (1558 N) for heavy clamping. The 30 mm window sets extend position on site, but treat it purely as an end stop; with no pressure the piston is free to move, so it cannot park a load by itself. FA flange or LB foot mounting, plus I or Y rod knuckles, covers most fixtures.
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 MACJ50X30-30S FAQ
Push 981 N, pull 881 N at 0.5 MPa (72 psi); push 1374 N, pull 1233 N at 0.7 MPa (102 psi); theoretical peak 200.1 kgf at 1.0 MPa (145 psi). The extend stroke is 30 mm, adjustable within a 30 mm window via the external stop screw. It runs on 0.15-1.0 MPa (22-145 psi) filtered air at 30-800 mm/s.
It shortens the extend stroke: the stop screw sets any final position up to 30 mm short of full travel. It never lengthens the stroke, and because it is a mechanical stop rather than a mid-stroke lock, the rod is not restrained if air pressure is lost. Mounting options are the FA flange and LB foot, with the magnet fitted as standard for sensor use.
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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