Nitto Kohki Pneumatics

Pneumatics

Nitto Kohki quick-release couplings and pneumatic tools cover operating pressures from standard compressed-air circuits up to 700 bar, with push-to-connect latch mechanisms rated for flow coefficients (Cv) of up to 1.8 in stainless steel, brass, and aluminium bodies conforming to ISO 6150 and ISO 4414. Series such as Cupla, Minimax, and Hi-Cupla deliver leak rates below 0.1 cm³/min at maximum rated pressure, while multi-coupling plates allow simultaneous connection of 2-24 lines in a single stroke - reducing changeover time in automated manufacturing by up to 80 %.

As an authorised distributor for Nitto Kohki, fluidics-equipment.com stocks over 2,053 catalogue references spanning low-pressure pneumatics (up to 19 bar), medium-pressure hydraulics (up to 75 bar), high-pressure couplings (up to 700 bar), cleanroom-certified connectors, noble-gas and vacuum fittings, mold-making couplings, pneumatic tools, and pumps and compressors - all compliant with ISO 4414, ISO 6150, and applicable SEMI standards for semiconductor environments.

Nitto Kohki Low Pressure up to 19 bar Cupla / Minimax series, 0-19 bar, ISO 6150, push-to-connect Nitto Kohki Medium Pressure up to 75 bar Hi-Cupla series, 20-75 bar, stainless steel and brass bodies Nitto Kohki High Pressure up to 700 bar Swagelock-compatible bodies, rated to 700 bar, leak <0.1 cm³/min Nitto Kohki Mold Making Cooling-water and hydraulic couplings, 150 bar, elbow and straight bodies Nitto Kohki Multi-Couplings 2-24 circuits, single-stroke connection, positioning accuracy ±0.5 mm Nitto Kohki Cleanroom Technology ISO Class 3-5 rated, PTFE seals, particle generation <10 per operation Nitto Kohki Noble Gases and Vacuum Vacuum to -0.1 MPa, Ar/N₂/He compatible, stainless 316L bodies Nitto Kohki Quick Couplings Cupla 20-type, 20A-type, 30A-type, G1/4 - G1 BSP/NPT, ISO 6150 Nitto Kohki Tools Pneumatic drills, tappers, grinders - 6.3-bar supply, torque to 100 Nm Nitto Kohki Pumps & Compressors Oil-free diaphragm pumps, flow 1-80 L/min, max 7 bar, IP54
Key technical advantages - Nitto Kohki Pneumatics at a glance
0-700 bar pressure range - low, medium, and high-pressure series under one manufacturer (ISO 6150)
2-24 circuits, single stroke - multi-coupling plates for simultaneous line connection in automated cells
🛠 Leak rate <0.1 cm³/min - precision-lapped valve seats in stainless steel 316L and brass bodies
ISO Class 3-5 cleanroom - PTFE-sealed couplings with particle generation <10 per actuation (SEMI S2)
🔍 Vacuum to -0.1 MPa - dedicated noble-gas and vacuum series compatible with Ar, N₂, He
2,053 stock references - full Nitto Kohki catalogue available via authorised distribution, ISO 4414

Nitto Kohki vs. Staubli vs. Parker Schrader Bellows vs. Rectus - technical comparison

Criterion Nitto Kohki Staubli Parker Schrader Bellows Rectus (Tema)
Max. rated pressure 700 bar 500 bar (RPG series) 400 bar 350 bar
Cleanroom rating ISO Class 3-5 ISO Class 4-6 ISO Class 5-6 Not specified
Multi-coupling circuits Up to 24 circuits Up to 20 circuits Up to 16 circuits Up to 12 circuits
Vacuum capability -0.1 MPa (dedicated series) -0.095 MPa -0.09 MPa Limited vacuum range
Body materials SS 316L, brass, Al, PTFE SS 303/316, brass Steel, brass, SS Brass, SS, zinc alloy
Noble gas compatibility Ar, N₂, He (dedicated) N₂, selected series N₂ only Not standard
Mold-making couplings Dedicated series to 150 bar Available, max ca. 100 bar Available, max ca. 80 bar Limited range
ISO standard compliance ISO 6150, ISO 4414 ISO 6150 ISO 6150 ISO 6150

Nitto Kohki - Product series overview

Series Application Pressure / Specification Key feature
Cupla (low pressure) General pneumatics, air tools 0-19 bar, G1/8 - G1 BSP/NPT One-touch push-to-connect, ISO 6150
Hi-Cupla (medium pressure) Hydraulics, test rigs 20-75 bar, Cv up to 0.8 Double-valve, non-spill connection
High-Pressure Cupla Hydraulic presses, water-jet Up to 700 bar, SS 316L Leak <0.1 cm³/min at rated pressure
Mold Cupla Injection mold cooling circuits Up to 150 bar, 120 °C max Elbow and straight body, color-coded ports
Multi-Coupling plates Automated fixtures, machine tools 2-24 circuits, ±0.5 mm positioning Single-stroke simultaneous connection
Cleanroom Cupla Semiconductor, pharma 0-10 bar, ISO Class 3-5 PTFE seals, <10 particles per actuation
Noble Gas & Vacuum Cupla Inert gas lines, vacuum systems -0.1 to +5 MPa, SS 316L Compatible with Ar, N₂, He media
Pumps & Compressors Laboratory, medical, industrial 1-80 L/min, max 7 bar, IP54 Oil-free diaphragm, low noise <55 dB(A)

Typical application areas: Electronics and SMT assembly (IPC-A-610, ISO 4414), semiconductor wafer handling (SEMI S1/S2, SEMI S8), pharmaceutical and biotech cleanrooms (ISO 14644-1 Class 3-5), automotive body-in-white and press lines (ISO 4414, IATF 16949), injection mold and die-casting toolrooms (ISO 6150), water-jet and high-pressure cutting (up to 700 bar), laboratory gas and vacuum distribution (ISO 10380), and aerospace assembly and test rigs (AS9100).

Authorised Nitto Kohki distributor 2,053 references: Cupla, Hi-Cupla, Mold Cupla, Multi-Coupling, Cleanroom, Noble Gas series
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Full pressure spectrum from stock Low pressure (19 bar) to ultra-high pressure (700 bar) - single-source supply
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