Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X120-10S
The AirTAC Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X120-10S is a genuine double acting, adjustable stroke + cushion standard round-body mini air cylinder with a Ø50mm bore and 120mm 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
- Stroke120 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 MACJ50X120-10S
A narrow 10 mm trim is all this variant asks for: set the final approach height once on a 120 mm stroke and lock it in. The 50 mm bore works double-acting with a variable air cushion at both ends, producing 981.3 N on the extend side and 880.8 N on retract at 0.5 MPa, or 1373.8 N with 0.7 MPa supply.
Build quality is the quiet advantage: a rolled stainless barrel, aluminium covers and a 16 mm hard-chrome plated rod that keeps its finish through humid shifts. For lifting, the piston manages about 100 kg at 0.5 MPa - with a 2:1 margin that is a 50 kg payload per cycle. The piston magnet is fitted as standard equipment for CMSG / DMSG / EMSG sensing, not a priced option.
Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X120-10S Technical Specifications
| Model | Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X120-10S |
|---|---|
| Series | MACJ mini cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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 MACJ50X120-10S
| MACJ | Standard round-body mini cylinder (adjustable-stroke, variable cushion). |
|---|---|
| 50 | Bore size in mm. |
| ×120 | Stroke length in mm. |
| -10 | 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 MACJ50X120-10S Is Used
Fixture height set in a weld cell
Sets the clamp arm final approach on jigs that get re-tooled; 10 mm of trim covers shim-stack differences between frames.
Stack lift assist
Raises a 45 kg stack of blister trays each cycle, sitting inside the 50 kg vertical margin at 0.5 MPa.
Rotary index detent
Locks an indexing table into position; the air cushion absorbs the snap-in so the detent pin does not bounce.
Is the Airtac MACJ Stainless Steel Mini Adjustable Cylinder MACJ50X120-10S the Right Cylinder?
Compare first: the 40 mm bore pushes 628.3 N and the 63 mm bore 1557.9 N, both at 0.5 MPa, so 50 mm is the mid pick for jigs around the 500-900 N mark. The 10 mm stop is a mechanical end-of-extend stop; it is not a mid-stroke lock and will not arrest a load when air bleeds off. Fit the FA flange for face mounting or the LB foot for base mounting, use I or Y knuckles on linkages, and mate valves to the 1/4" port with supply 0.15-1.0 MPa (22-145 psi) at 30-800 mm/s. At 120 mm of stroke, guide side loads externally and keep honest working force near 589 N to protect the rod seals.
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 MACJ50X120-10S FAQ
The 50 mm bore gives 981.3 N push and 880.8 N pull at 0.5 MPa, 1373.8 N push at 0.7 MPa, and a theoretical 200.1 kgf at 1.0 MPa. The rod is 16 mm with an M14x1.5 thread, the port is 1/4", and the adjust window is 10 mm.
The stop screw changes extend position only. The variable air cushion remains a feature at both ends of the cylinder, and the standard piston magnet keeps triggering CMSG, DMSG or EMSG switches at the retracted end regardless of the trim setting.
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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