Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X40-30S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X40-30S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 40mm 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
- Stroke40 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 MACJ50X40-30S
Thirty millimetres of on-site trim is what the MACJ50X40-30S buys you: AirTAC's round-body MA mini cylinder, double-acting, with the extend stroke shortened anywhere inside that window by an external stop. The variable air cushion at each end lets you dial out landing shock, so 981.3 N of push at 0.5 MPa can arrive gently even at speed.
Its riveted round body - a stainless barrel with a 20 um hard-chrome rod between aluminium-alloy covers - seals by rolling and tolerates washdown and damp plants better than painted minis. Derate to roughly 589 N for continuous work and the bore still lifts about 50 kg vertically at a 2:1 margin. CMSG, DMSG or EMSG switches snap on immediately because the magnet ships inside every piston.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X40-30S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X40-30S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 MACJ50X40-30S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×40 | 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 MACJ50X40-30S Is Used
Z-drop on a small pick-and-place
Lowers a gripper onto PCB trays; the 30 mm trim dials in the drop height and the cushion removes the thud at the bottom.
Bushing press-in on an assembly bench
About 589 N of working force at 0.5 MPa seats small bushings; push up to 1373.8 N at 0.7 MPa for tighter interference fits.
Scrap trim pusher under a press brake
Sweeps punched slugs off the table with 40 mm travel, and the stainless shell stands up to the oily, damp air under the tool.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X40-30S the Right Cylinder?
One bore down, the 40 mm MAC cylinder makes 628.3 N at 0.5 MPa; one bore up, the 63 mm version delivers 1557.9 N. This 50 mm unit splits them at 981.3 N, with a 30 mm extend trim. The trimmer limits travel only - on air loss the rod can still be driven back, so use a locking or check valve where position must hold.
FA flange and LB foot brackets cover fixed mounting; I and Y knuckles suit a pivoting clevis load. Ports are 1/4", rod thread M14x1.5, speed 30-800 mm/s, pressure 0.15-1.0 MPa (22-145 psi), proof 1.5 MPa (215 psi).
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 MACJ50X40-30S FAQ
Push 981.3 N and pull 880.8 N at 0.5 MPa; push 1373.8 N and pull 1233.1 N at 0.7 MPa; theoretical peak 200.1 kgf at 1.0 MPa. Bore is 50 mm with a 16 mm hard-chrome rod, stroke 40 mm with a 30 mm adjustable window, 1/4" ports and speed 30-800 mm/s.
The stainless steel barrel is rolled into the aluminium covers, so the cylinder resists mild corrosion and washdown better than painted or plain aluminium minis. The twin variable air cushions can then be tuned per station, letting you run faster cycles without hammering the end covers.
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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