Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X125-20S
The AirTAC Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X125-20S is a genuine double acting, adjustable stroke standard round-body mini air cylinder with a Ø16mm bore and 125mm stroke, M5×0.8 air ports and a stainless-steel barrel with a hard-chrome-plated rod for reliable, mildly corrosion-resistant service.
- BoreØ16 mm
- Stroke125 mm
- Port sizeM5×0.8
- Acting typeDouble acting, adjustable stroke
- Rod threadM6×1.0
- 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 MAJ16X125-20S
Dia 16 force in a riveted round body: the MAJ16X125-20S runs double-acting at 0.15-1.0 MPa (22-145 psi) and pushes 100.5 N, pulls 86.4 N, at 0.5 MPa. An external stop screw adjusts the extend stroke across a 20 mm window - anywhere from 105 to 125 mm - and fixed bumper pads absorb the impact at each end of the trimmed travel.
Derate to about 60 N of working push at 0.5 MPa for a durable design, which equates to hoisting near 5 kg vertically against a 2:1 safety factor. The stainless tube and 20 um hard-chrome rod handle damp, rinse-prone stations far better than painted mini cylinders. Position sensing is ready out of the box: the standard magnet accepts CMSG / DMSG / EMSG switches without modification.
Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X125-20S Technical Specifications
| Model | Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X125-20S |
|---|---|
| Series | MAJ mini cylinder |
| Bore size | Ø16 mm |
| Stroke | 125 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| 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 300 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 101 N | 86 N |
| 0.7 MPa | 141 N | 121 N |
| Max (@1.0 MPa) | 21 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 MAJ16X125-20S
| MAJ | Standard round-body mini cylinder (adjustable-stroke). |
|---|---|
| 16 | Bore size in mm. |
| ×125 | Stroke length in mm. |
| -20 | 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 MAJ16X125-20S Is Used
Blister-pack ejector
Pushes finished blister cards off a thermoforming station; 100.5 N at 0.5 MPa is ample for a few grams of plastic and foil.
Clamp on a small drilling fixture
Holds an aluminium bracket during light drilling; plan around 60 N of clamp force at 0.5 MPa and set the 105-125 mm window to the bracket height.
Battery tray locating pin
Drops a locating pin into a light e-bike battery tray; the standard magnet signals pin-home to the PLC via a CMSG switch.
Is the Airtac MAJ Double Rod Adjustable Stainless Steel Mini Cylinder MAJ16X125-20S the Right Cylinder?
Against its siblings, this 16 mm bore delivers 100.5 N at 0.5 MPa; a 20 mm bore raises that to 157 N and a 25 mm bore to 245.3 N, so upsize when the mechanism adds friction. There is no smaller MA bore, so 16 mm is your starting point.
The 20 mm window gives moderate on-site trim around the 125 mm nominal travel. Mounting options are the FA flange, LB foot and I / Y knuckles (no SDB on this adjustable type); the stop screw fixes the extend end only and must never be trusted to hold a load when air fails. Keep the 6 mm rod side-load free across the long 125 mm stroke or add an external guide. For sensing, the standard magnet pairs with CMSG / DMSG / EMSG switches.
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 MAJ16X125-20S FAQ
At 0.5 MPa: 100.5 N extending, 86.4 N retracting. At 0.7 MPa: 140.7 N extending, 120.9 N retracting. The Dia 16 bore tops out near 20.5 kgf at the theoretical 1.0 MPa. The operating window is 0.15-1.0 MPa (22-145 psi) with 30-800 mm/s speeds.
Ports are M5x0.8 (fixed by the 16 mm bore) and the rod carries an M6x1.0 male thread. Mount on an FA flange or LB foot, with I or Y rod knuckles where the load pivots - adjustable-stroke models offer no SDB. The stop screw trims the extend stroke anywhere from 105 to 125 mm and is an end stop, not a load-holding brake.
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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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