
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-75 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 200mm nominal stroke and a rear adjustable-stroke stopper — trim up to 75mm for a usable window of 125–200mm. Adjustable air cushion (both ends).
The AirTAC MBLCJ20X200-75 is a compact double-acting aluminum mini cylinder featuring a rear stroke adjuster and an adjustable air cushion at both ends. It delivers 157 N of push force at 0.5 MPa. The rear stopper allows you to trim up to 75 mm of travel, creating a usable stroke window of 125 to 200 mm. This 200 mm total stroke is well suited for longer reach operations in tight spaces where a standard ISO 6432 body will not fit.
This SKU features a default PT port thread, an Ø8 mm hard-chrome plated carbon-steel rod, and a G1/8 port. The screw-tunable air cushion decelerates heavier loads near the stroke ends, protecting the end covers better than a fixed rubber bumper. Because this model lacks the -S suffix, it has no internal magnet and cannot accept CMSG, DMSG, or EMSG position sensors. The riveted rolling-packed barrel and grease-retaining piston seal ensure consistent low-friction operation across the 30 to 800 mm/s speed range.
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-75 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 125–200 mm (trim 75 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| 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 | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -75 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Pushes a routing head along a 125 to 200 mm path. The tunable air cushion prevents impact spikes when the lightweight 157 N actuator hits the end of travel.
Trims reagent nozzle drop height with the 75 mm rear stopper. The lack of a magnet is ideal for sterile environments where electronic sensors are unwanted.
Actuates a guide roller across a 200 mm span. The riveted aluminum body handles high cycle counts while the adjustable cushion protects the end covers.
Choose this Ø20 bore when you need 157 N push force at 0.5 MPa with a long 200 mm travel. If your application requires less force, stepping down is not possible as this is the smallest available size. If you need significantly more power, step up to the Ø25 bore, which provides 245 N of push force at 0.5 MPa. This MBLCJ variant is preferred over the MBLJ when your moving mass requires tunable end-of-stroke deceleration rather than a fixed bumper. For a fixed 200 mm stroke without the rear adjuster, select the MBLC series instead.
Remember that the rear adjuster acts only as a mechanical travel stop, not a lock, and the cushion only decelerates; neither will hold a load in place without live air pressure. Mounting is limited to Basic, FA flange, or LB foot styles; there is no SDB pivot or back-cover option. When ordering a replacement, verify the 20 mm bore, 200 mm stroke, 75 mm adjust code, G1/8 port, PT thread, and lack of a magnet. Because the stroke is 200 mm, the small Ø8 mm rod is susceptible to side loading; always use an external guide to prevent rod bending.
Quick checklist
At 0.5 MPa it provides 157 N push and 132 N pull force. At 0.7 MPa the push force is 220 N, with a theoretical maximum of 32 kgf at 1.0 MPa. The 75 mm rear adjuster allows you to set the usable stroke anywhere between 125 mm and 200 mm.
This specific SKU lacks the -S suffix, so it has no internal magnet and cannot accept CMSG, DMSG, or EMSG sensors. The rear screw is a travel stop that sets the end position, and the air cushion handles deceleration; neither component acts as a lock to hold the load without continuous air pressure.
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