Hydro Pneumatic Cylinder Fast Speed Jiurong Jrm 01
Hydro Pneumatic Cylinder Fast Speed Jiurong Jrm 01
HIGH-SPEED SERIES

JRM High-Speed Hydro-Pneumatic Booster Cylinder

More strokes per shift. The JRM is JiuRong's throughput-optimised booster cylinder — a slender body with oil-gas isolation delivers 30–50% faster cycles than the standard JRA, while the integrated protective cover keeps maintenance stops off your schedule.

✓ ISO 9001:2015 Certified ✓ 2-Year Warranty ✓ 30–50% Faster Cycles
1–40T Output Force
30–50% Faster Than JRA
25–45 Cycles/min
80–160 Bore mm
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Why Speed Is the Throughput Multiplier

When the press is the bottleneck, every fraction of a second per cycle compounds across thousands of strokes per shift. The JRM is not a standard cylinder with a "fast" label — it is purpose-built where three engineering changes work together to cut cycle time.

Cycle-Time Comparison: JRA Standard vs JRM High-Speed

JRA
Standard cycle time — baseline
JRM
30–50% faster approach & return

Speed improvement range per JiuRong catalog data (30% per catalog, 50% per gallery). Actual cycle-time reduction depends on stroke length, operating pressure, and force setting. Confirm with engineering for your specific parameters.

⚡

Slender Body

The elongated, narrow profile reduces moving mass, enabling faster acceleration on approach and quicker retraction after each press stroke.

🔁

Oil-Gas Isolation

Separating the hydraulic oil circuit from the pneumatic circuit increases return and lifting force — the cylinder retracts faster, shortening the non-productive portion of every cycle.

🛡

Integrated Protective Cover

Shields the cylinder body from shop-floor contaminants, reducing wear-related maintenance stops that erode throughput in high-cycle environments.

Operating Principle

A two-stage cycle — fast pneumatic approach followed by hydro-pneumatic boost — controlled by dual 5-port solenoid valves on a three-port circuit (A / B / C).

Force vs. Displacement

Approach Stroke (low force, fast) Power Stroke High Force Low Force Workpiece contact
  1. 1

    Fast Approach — DT1 ON

    Solenoid DT1 energises. Air pressure acts on the oil reservoir, driving the piston down at low force through the full approach stroke. The slender body minimises inertia for rapid traverse.

  2. 2

    Boost — DT1 + DT2 ON

    The rod meets resistance. DT1 holds and DT2 energises, routing air to the boost chamber. Pascal's principle multiplies force through the oil column, delivering high pressing force over the short power stroke.

  3. 3

    Pressure Release — DT2 OFF

    After holding pressure as needed, DT2 de-energises. The boost chamber retracts and the cylinder releases pressure before return.

  4. 4

    Fast Return — DT1 OFF

    DT1 de-energises. Oil-gas isolation provides increased return force, snapping the piston back quickly. Oil returns to the reservoir — one cycle complete.

Three-Port Pneumatic Circuit (A / B / C)

Jrm Pneumatic Circuit Diagram
DT1 5-port solenoid — ports A & B DT2 5-port solenoid — port C A Lower port B Air cylinder section C Boost section

Technical Specifications

Performance

Actuation TypeDouble-acting
High Pressure Output1–40 tons
Operating Speed50–400 mm/s
Operating Frequency25–45 cycles/min
Speed Advantage30–50% faster than JRA

Fluid & Pressure

Operating Pressure4–7 kgf/cm² (compressed air)
Hydraulic MediumISO VG68 anti-wear oil
Oil Cylinder Proof120 kgf/cm²
Air Cylinder Proof30 kgf/cm²
Working Temperature0–60 °C

Mechanical

Bore Sizes∅80, 100, 125, 150, 160 mm
Total Stroke50–400 mm
Power Stroke5 / 10 / 15 / 20 mm
Mounting TypeVertical (standard)
Protective CoverIntegrated (standard)

Installation Dimensions

All dimensions in millimetres. Select a bore size to view dimensions for each tonnage class. N = overall length at the indicated power stroke (5 / 10 / 15 / 20 mm).

∅80 mm
∅100 mm
∅125 mm
∅150 mm
∅160 mm

∅80 mm Bore — Dimensions by Tonnage

TonABCDE F (Air)G (Rear)HIJKLM (Thread) N (5mm)N (10mm)N (15mm)N (20mm)OP
5T 160 100 132 65 19 ZG3/8" ZG3/8" 20 3/8 50 75 35 22 M30x1.5 432 512 592 672 70 95
10T 180 132 65 19 24 ZG3/8" ZG3/8" 20 3/8 50 75 35 22 M30x1.5 529 621 713 805 70 95
15T 190 118 155 65 22 ZG3/8" ZG1/2" 20 3/8 50 90 40 25 M30x1.5 515 605 695 785 90 110

∅100 mm Bore — Dimensions by Tonnage

TonABCDE F (Air)G (Rear)HIJKLM (Thread) N (5mm)N (10mm)N (15mm)N (20mm)OP
5T 190 145 190 85 28 ZG1/2" ZG1/2" 26 1/2 85 110 60 35 M40x2 615 710 805 900 110 140
10T 225 110 25 241 12 ZG3/8" ZG1/2" 27 1/2 50 75 35 25 M30x1.5 600 710 820 930 90 110
15T 235 165 200 100 32 ZG1/2" ZG3/4" 300 110 120 60 40 M42x2 672 780 888 996 140 160

∅125 mm Bore — Dimensions by Tonnage

TonABCDE F (Air)G (Rear)HIJKLM (Thread) N (5mm)N (10mm)N (15mm)N (20mm)OP
10T 200 200 260 120 38 ZG3/4" ZG1" 380 160 160 100 60 M64x2 914 1050 1186 1322 200 240
15T 290 145 190 85 28 ZG1/2" ZG3/4" 26 3/4 85 110 60 35 M40x2 672 780 888 996 110 140
20T 300 220 280 140 42 ZG3/4" ZG1" 420 160 195 100 60 M64x2 977 1120 1263 1406 200 260

∅150 mm Bore — Dimensions by Tonnage

TonABCDE F (Air)G (Rear)HIJKLM (Thread) N (5mm)N (10mm)N (15mm)N (20mm)OP
20T 290 200 260 120 32 ZG3/4" ZG1" 26 3/4 120 135 75 50 M48x2 868 985 1102 1219 150 190
30T 300 220 280 140 38 ZG1" ZG1 1/4" 330 160 160 100 60 M56x2 1009 1140 1271 1402 200 240
40T 360 260 340 160 42 ZG1 1/4" ZG1 1/2" 420 200 195 130 75 M64x2 1220 1380 1540 1700 260 310

∅160 mm Bore — Dimensions by Tonnage

TonABCDE F (Air)G (Rear)HIJKLM (Thread) N (5mm)N (10mm)N (15mm)N (20mm)OP
20T 300 220 280 140 38 ZG1" ZG1 1/4" 330 160 160 100 60 M56x2 1009 1140 1271 1402 200 240
30T 360 260 340 160 42 ZG1 1/4" ZG1 1/2" 420 200 195 130 75 M64x2 1220 1380 1540 1700 260 310
40T 390 290 380 180 50 ZG1 1/2" ZG2" 510 240 240 160 90 M80x3 1460 1650 1840 2030 307 367

F = side air port thread; G = rear air port thread. Standard data; custom dimensions available on request.

Theoretical Output Force vs. Air Pressure

Theoretical high-pressure force in kgf at 4–7 kgf/cm² supply pressure. Values shown for 80–150 mm bores; 160 mm force data per engineering confirmation.

BoreTon4 kgf/cm²5 kgf/cm²6 kgf/cm²7 kgf/cm²
∅80 mm 5T 2,800 3,500 4,200 4,900
∅80 mm 10T 5,600 7,000 8,400 9,800
∅80 mm 15T 8,400 10,500 12,600 14,700
∅100 mm 5T 4,500 5,625 6,750 7,875
∅100 mm 10T 9,000 11,250 13,500 15,750
∅100 mm 15T 13,500 16,875 20,250 23,625
∅125 mm 10T 9,375 11,719 14,063 16,406
∅125 mm 15T 14,063 17,578 21,094 24,609
∅125 mm 20T 18,750 23,438 28,125 32,813
∅150 mm 20T 12,000 15,000 18,000 21,000
∅150 mm 30T 18,000 22,500 27,000 31,500
∅150 mm 40T 24,000 30,000 36,000 42,000

Above are theoretical values. Actual output force should not exceed 50% of the listed values to preserve operating speed.

How to Select a JRM

Seven parameters to specify for an accurate quotation.

1

Oil Cylinder Bore

80 / 100 / 125 / 150 / 160 mm — determines the available tonnage range.

2

Total Stroke

50–400 mm approach travel. Longer strokes reduce cycles per minute.

3

Power Stroke

5 / 10 / 15 / 20 mm of high-force travel after workpiece contact.

4

Required Tonnage

1–40 T. Match to the pressing force your application demands.

5

Target Cycle Rate

25–45 cycles/min. State your strokes-per-shift target so we can confirm the speed advantage at your parameters.

6

Return Force

Required lifting / return force in kg — oil-gas isolation boosts this over standard designs.

7

Mounting

Vertical (standard) with integrated protective cover. Confirm clearance for the slender body profile.

Build Your Model Number

The JRM model code: JR-M-bore-total stroke-power stroke-tonnage. Configure below to see your model code update in real time.

JR-M-80-100-10L-5T
JR-M High-Speed - 80 ∅80mm bore - 100 100mm total stroke - 10L 10mm power stroke - 5T 5 tons output

Model Code Format

JR-M — JiuRong High-Speed series

Bore — oil cylinder bore in mm

Total Stroke — approach travel in mm

Power Stroke — high-force travel (5L/10L/15L/20L)

Tonnage — output force rating

Custom orders: Non-standard strokes, special bore combinations, and custom mounting configurations are available. Contact our engineering team with your application details.

Built for High-Volume Production

JRM earns its place when every stroke counts — high-cycle lines where the press sets the pace for the entire cell.

⚡ Extrusion High-cycle extrusion presses
🔧 Bending Automated bending cells
⚒ Punching & Stamping Automotive & hardware lines
⚙ Forming High-volume metal forming
🔨 Riveting Electronics & assembly
🚗 Assembly Press-fit & insertion

When JRM Is the Right Call

JRM is the speed-first variant. Choose it when cycle time limits throughput; choose a sibling when other requirements dominate.

Choose JRM when…

  • Press cycle time is the bottleneck on your line
  • You run high-volume production (automotive, consumer goods, electronics)
  • You can quantify the value of additional strokes per shift
  • Dusty or contaminated environment — the protective cover adds uptime
  • Standard vertical mounting fits your machine
  • Required force is within 1–40T, bore 80–160 mm

Consider a sibling when…

  • Speed is not a constraint — JRA is the cost-effective default
  • You need adjustable stroke — evaluate JRB / JRC
  • You need single-stage direct force — choose JRE
  • Installation length is the constraint — choose JRP parallel type
  • You need programmable servo motion profiles
  • Force below 5T — confirm availability with engineering

Frequently Asked Questions

What is the fastest JiuRong hydro-pneumatic booster cylinder?
The JRM is JiuRong's speed-first series, purpose-built for maximum cycle rate. It uses a slender body and oil-gas isolation to achieve 30–50% faster cycles than the standard JRA. For even higher speed requirements, the JRF fast-acting single-column series is the next tier up.
How does JRM compare to JRA in speed?
Catalog data indicates the JRM is 30–50% faster than the JRA at equivalent force and stroke. The exact improvement depends on stroke length, operating pressure, and force setting. We recommend confirming the speed gain at your specific parameters before full deployment.
What makes JRM faster than standard hydro-pneumatic cylinders?
Three engineering changes: (1) a slender cylinder body reduces moving mass for faster acceleration and return; (2) oil-gas isolation separates the oil and air circuits, increasing return force so the piston retracts faster; (3) an integrated protective cover reduces contamination-related maintenance stops that eat into production time.
Is JRM suitable for high-volume production?
Yes. JRM is designed specifically for high-volume environments — automotive parts stamping, consumer-goods assembly, and electronics manufacturing. Its value proposition is inherently quantitative: more strokes per shift from the same machine footprint.
What is the cycle rate of the JRM?
The JRM operates at 25–45 cycles per minute, with an operating speed of 50–400 mm/s. Actual cycle rate is inversely proportional to stroke length — shorter strokes yield more cycles per minute.
How much faster is JRM — 30% or 50%?
The two source documents differ: the catalog states 30% faster than JRA, while the gallery states 50%. We present the 30–50% range to reflect this. The actual improvement is application-dependent. Contact our engineering team with your stroke, force, and pressure parameters for a confirmed figure.
What is oil-gas isolation and how does it improve speed?
Oil-gas isolation separates the hydraulic oil circuit from the pneumatic air circuit inside the cylinder. This design increases the return (lifting) force, so after each pressing stroke the piston retracts faster — directly shortening the non-productive portion of every cycle.
Does the protective cover affect cooling or performance?
No. The integrated protective cover is designed to shield the cylinder body from shop-floor contaminants (dust, swarf, coolant mist) without impeding heat dissipation. It reduces wear-related maintenance, which is a net positive for throughput in high-cycle environments.
What bore sizes are available in the JRM?
The JRM is available in 80, 100, 125, 150, and 160 mm bores. Note that this differs from the family standard: there is no 63 mm option, and a 150 mm bore is offered. Tonnage ranges from 1–40T depending on bore.
How do I calculate throughput improvement from switching to JRM?
Estimate your current cycle time with the JRA, then apply a 30–50% reduction to get the JRM cycle time. Multiply the time saved per cycle by your strokes per shift to get additional cycles per shift. For example, saving 0.5 seconds per cycle at 3,000 strokes per shift yields 25 minutes of additional production time. Contact us for a model built around your actual parameters.

Ready to Increase Your Press Throughput?

Send us your force, stroke, and target cycle rate — we'll confirm the JRM configuration and speed advantage for your application.

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