Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø32mm bore and 45mm stroke, 1/8" air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ32 mm
- Stroke45 mm
- Port size1/8"
- Acting typeDouble acting, adjustable stroke
- Rod threadM10×1.25
- CushionFixed anti-impact bumper pads
- 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S
A 50 mm trim window on a 45 mm stroke gives the MAJ32X45-50S unusual setup freedom: the ordered window spans the entire stroke, so technicians can shorten the extend stroke to almost any length the station demands and re-trim later without swapping cylinders. Both directions of travel are air driven, with 402.2 N of push and 345.6 N of pull available at 0.5 MPa.
Work out the margin before fitting: 402.2 N is about 41 kg of vertical lift, so a 20 kg payload still leaves a 2:1 cushion. The stainless round barrel with a hard-chrome 12 mm rod stands up to coolant mist and rinse-down, the fixed anti-impact pads quiet the stroke ends (they decelerate only - adjustable cushioning belongs to the MACJ range), and the standard-fit magnet accepts CMSG, DMSG or EMSG switches on the barrel.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø32 mm |
| Stroke | 45 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 | Fixed anti-impact bumper pads |
| 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | 484 N |
| Max (@1.0 MPa) | 82 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 32 | Bore size in mm. |
| ×45 | 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 MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S Is Used
Dispense head drive
Lowers a dispensing nozzle into sample wells on a lab plate handler, where the full-stroke trim window sets a precise drop height.
Label press-on roller
Presses labels onto cartons at a short, repeatable contact stroke on a semi-automatic labeler.
Sort gate flipper
Flicks a diverter gate on a pharma sorting line between two lanes, with a DMSG switch reading each end position.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S the Right Cylinder?
Bore comparison at 0.5 MPa: MAJ25 offers 245.3 N but caps at a 300 mm standard stroke, while MAJ40 steps up to 628.3 N; the 32 mm bore in between pushes 402.2 N. In practice plan on roughly 241 N, about 60 percent of the rating, for real work.
Because the window is wider than the stroke here, set the stop screw carefully and re-check the switched end positions with a DMSG or EMSG sensor after trimming. The adjuster is a hard mechanical limit on extension, so a lost air supply still lets the rod drift - it is not a clamp. FA flange or LB foot mounting, with I or Y rod knuckles where the linkage needs them.
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 Bumper models: keep speed within the rated range.
- check Installation by qualified personnel per AirTAC docs.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ32X45-50S FAQ
At 0.5 MPa the bore 32 piston develops 402.2 N extending and 345.6 N retracting; at 0.7 MPa those rise to 563.0 N and 483.8 N, and the theoretical ceiling is 82.0 kgf at 1.0 MPa. Speed runs 30-800 mm/s across a 0.15-1.0 MPa (22-145 psi) supply.
No - every MAJ leaves the factory with the position magnet already in the piston, so adding CMSG, DMSG or EMSG switches is a plug-on job. That matters on this model because the trim window lets end positions move after commissioning, and a sensor saves re-measuring.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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