Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30 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 30mm for a usable window of 170–200mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke200 mm
- Adjustable170–200 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30
The AirTAC MBLCJ20X200-30 is a compact double-acting aluminum mini cylinder featuring a rear travel stopper and tunable air cushions at both ends. It delivers 157 N of push force and 132 N of pull force at 0.5 MPa. The rear adjuster allows you to trim up to 30 mm of travel, creating a usable stroke window of 170 to 200 mm for exact endpoint positioning. This 200 mm stroke length is well suited for reaching distant clamping points in tight machine cells.
Unlike the standard MBLJ which relies on a fixed rubber bumper, this model uses screw-tunable end-of-stroke deceleration to absorb kinetic energy, protecting the end covers during faster moves. The Ø8 mm hard-chrome plated carbon steel rod operates within a riveted rolling-packed barrel using a grease-retaining piston seal. Note that this specific SKU lacks a built-in magnet, meaning it cannot support CMSG, DMSG, or EMSG position sensors.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 170–200 mm (trim 30 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.
Theoretical Output Force (Ø20mm)
| 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.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -30 | 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).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30 Is Used
PCB Edge Guide Trimming
Uses the 170-200 mm adjustable stroke window to reach and trim excess PCB material in electronics assembly, relying on the 157 N push force for clean cuts.
Textile Loom Tensioner
Adjusts yarn tensioning arms in textile machinery, where the tunable air cushion prevents sudden jerks that would snap delicate threads at high speeds.
Pharmacy Vial Sorting Gate
Actuates a diverter gate in pharmaceutical packaging lines, using the rear stopper to precisely set the 30 mm travel limit for routing different vial diameters.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30 the Right Cylinder?
Choose this 20 mm bore when you need 157 N of push force at 0.5 MPa in a compact footprint. If your application requires less force, you would step down to a smaller bore, but since 20 mm is the smallest available size, you would instead reduce your operating pressure. If you need substantially more thrust for heavier loads, step up to the 25 mm bore, which provides 245 N of push force at 0.5 MPa. Compared to the MBLJ, this MBLCJ variant is chosen when adjustable air cushions are needed to tame end-of-stroke impact, whereas the MBLC provides the same cushioning but with a fixed non-adjustable stroke.
When replacing this unit, match the 20 mm bore, 200 mm stroke, 30 mm adjust code, G1/8 port, and PT thread form. Mounting is limited to Basic, FA flange, or LB foot styles; there is no SDB pivot or back-cover option available. Because the stroke is 200 mm, the small Ø8 mm rod is susceptible to side-loading and bending—always use an external guide rail to support the load. Remember that the rear adjuster is a travel stop and the cushion only decelerates; neither component will mechanically lock or hold the load in place without live air pressure.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-30 FAQ
At 0.5 MPa, the 20 mm bore provides 157 N of push force and 132 N of pull force. At 0.7 MPa, the push force increases to 220 N. The maximum theoretical force is 32 kgf at the 1.0 MPa operating pressure limit.
This specific SKU does not have a built-in magnet, so it cannot accept CMSG, DMSG, or EMSG position sensors. The rear 30 mm adjustment is a travel stop that sets the endpoint, and the adjustable air cushion only controls deceleration; neither feature locks or holds the load without continuous air pressure.
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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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