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Metalworking & Fabrication › FCG & Motion Systems
Category 02 of 4FCG & Motion Systems
Every press, press brake, baler, and machine tool on a fabrication floor depends on the same quiet chain: a pump that makes flow, valves that steer it, cylinders or motors that turn it into force, and the hose, tube, and fittings that carry it all without a leak. Domnick Thailand supplies the fluid connectors group, hydraulic hose solutions, and industrial hose assemblies, plus the hydraulic pumps, industrial hydraulic cylinders, and directional control valves that complete the circuit, as complete fluid and motion solutions specified for metalworking duty.
ISO 4413 Hydraulic Safety Aware ISO 4414 Pneumatic Safety Aware ISO 4406 Fluid Cleanliness Aware
Sizing Check: Force From Pressure
Force = Pressure × Piston Area
System pressure200 bar (20 N/mm²)
Cylinder bore100 mm
Piston areaapprox. 7,854 mm²
Push forceapprox. 157 kN (16 tonnes-force)
A first-pass number only. A real circuit also accounts for back pressure, friction, and the smaller rod-side area on the return stroke.
5Circuit Stages
Power, control, actuation, conveyance, and protection in one scope
40Component Families
From hose assemblies and fittings to bearings and couplings
~4:1Typical Hose Burst Margin
Burst pressure commonly specified well above working pressure
24/7Continuous Duty
Specified for multi-shift press and forming lines
Industry Overview
Fluid Power And Motion For Metalworking Plants
Forming a bracket, bending a plate, or baling scrap all come down to delivering a controlled force at the right moment, and in most metalworking plants that force is fluid power. Metalworking hydraulic systems convert pump flow into cylinder force, while pneumatic motion systems handle the lighter, faster jobs such as clamping, part ejection, and feeding.
Reliability depends less on any single part than on how well the whole circuit is matched: the hydraulic power systems sized to the duty cycle, the fluid control components that regulate it, and the fabrication fluid systems plumbing that links everything. Where machines also need precise positioning or speed, electromechanical motion control and linear motion systems take over from pure fluid power.
Domnick Thailand supplies the full range as integrated fluid systems, so a single point of accountability covers conveyance, power, motion, and protection across the plant.
Fluid Conveyance 13 families
- fluid connectors group
- hydraulic hose solutions
- industrial hose assemblies
- tube and pipe fittings
- high pressure hydraulic fittings
- quick connect couplings
- stainless steel fittings
- pipe connection technologies
- fluid distribution systems
- hose protection systems
- fluid control components
- integrated fluid systems
- fabrication fluid systems
Sealing & Protection 4 families
- sealing and protection systems
- industrial sealing solutions
- o ring sealing systems
- wear protection components
Fluid Power 13 families
- hydraulic motion systems
- hydraulic power systems
- pneumatic motion systems
- industrial hydraulic cylinders
- pneumatic cylinders
- directional control valves
- pressure control valves
- hydraulic pumps
- hydraulic motors
- metalworking hydraulic systems
- cooling systems for machinery
- industrial lubrication systems
- power transmission systems
Mechanical Motion 10 families
- electromechanical motion control
- mechanical motion components
- linear motion systems
- mechanical drive components
- industrial bearings
- shaft couplings
- torque control systems
- speed control systems
- industrial automation motion systems
- complete fluid and motion solutions
Anatomy Of A Press Circuit
Five Stages, One Connected Circuit
Follow the flow from pump to protection and see where each component family earns its place. Not sure where your machine needs help? Chat on LINE and we will trace it with you.
1
Power Source
Where flow and pressure are madeThe circuit starts with hydraulic pumps and hydraulic motors sized for the machine's duty cycle, feeding hydraulic power systems and wider power transmission systems. In metalworking hydraulic systems, the heat this work generates has to go somewhere, which is why cooling systems for machinery and industrial lubrication systems belong in the design from day one rather than as an afterthought.
2
Control
Where flow is steered and limitedDirectional control valves decide which way the cylinder moves, and pressure control valves cap the force so a die, tool, or frame is never overloaded. Together with other fluid control components, they form integrated fluid systems. On machines that need precise speed or force, speed control systems, torque control systems, and electromechanical motion control add finer regulation than a valve alone can give.
3
Actuation
Where flow becomes motionIndustrial hydraulic cylinders deliver the heavy push of a press ram, while pneumatic cylinders handle clamping and part handling at lower force. Both belong to wider hydraulic motion systems and pneumatic motion systems. Around them, linear motion systems, mechanical motion components, mechanical drive components, industrial bearings, and shaft couplings guide, support, and connect the moving parts, forming industrial automation motion systems on automated lines.
4
Conveyance
Where fluid travels between stagesThe fluid connectors group carries flow from pump to actuator using hydraulic hose solutions, industrial hose assemblies, tube and pipe fittings, and high pressure hydraulic fittings. Quick connect couplings speed up tool and die changes, stainless steel fittings resist corrosion in coolant-heavy areas, and pipe connection technologies keep rigid runs leak-tight. Together they build the fluid distribution systems and fabrication fluid systems running through the plant.
5
Protection
Where leaks and wear are stoppedSeals are what keep pressure where it belongs. Sealing and protection systems built from industrial sealing solutions and o ring sealing systems hold fluid in, while hose protection systems and wear protection components guard against abrasion, heat, and impact from hot swarf and moving machinery. When every stage is specified together, the result is a set of complete fluid and motion solutions rather than a pile of parts.
Applications
Forming, Pressing, And Baling Equipment
Presses and forming machines put the toughest demands on a fluid circuit: high force, repeated shock, and hot, dirty surroundings.
⚙️
Press Brakes & Forming Presses
High force, tight repeatabilityBending and forming rely on precisely controlled force and stroke. Dual-cylinder press brakes need matched flow and well-regulated pressure control valves so both sides move together, and consistent hose and fitting quality keeps response predictable across thousands of cycles.
- Cylinders
- Servo-hydraulic valves
- High pressure hose
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Stamping & Deep-Draw Presses
Fast cycling, repeated shockRapid cycling creates pressure spikes well above steady working pressure, which is hard on hose and fittings. Assemblies need ratings with real margin and secure, vibration-tolerant connections.
- Hose assemblies
- Pipe fittings
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Balers & Scrap Compactors
Dirty, abrasive surroundingsMetal scrap balers deliver very high force in dust and debris. Protective sleeves, abrasion-resistant covers, and sealed couplings are what keep hose and fittings alive in this environment.
- Hose protection
- Wear components
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Machine Tools & CNC Auxiliaries
Clamping, coolant, and lubricationBeyond the main drive, machining centers lean on hydraulic clamping, pneumatic fixtures, coolant distribution, and centralized lubrication, each a small circuit with its own fittings, valves, and seals to specify properly.
- Clamping circuits
- Coolant lines
- Lubrication
- Pneumatic fixtures
Why It Matters
Four Ways Fluid Circuits Fail, And How To Prevent Each
Most fluid power failures trace back to a short list of causes, and each one is far cheaper to design out than to repair on a stopped line.
| Failure Mode | What Usually Causes It | How It Is Prevented |
|---|---|---|
| Hose Burst Or Leak | Pressure spikes above the assembly rating, abrasion against frames, bend radius violated, or an aged assembly left in service well past its life. | Specify industrial hose assemblies against peak, not steady, pressure with margin. Fit protection sleeves, route to respect minimum bend radius, and set a replacement interval. |
| Fluid Contamination | Particles from wear, water ingress, and dirt entering through open fittings and couplings during maintenance. Contamination is among the leading causes of hydraulic wear. | Filter to a target cleanliness class under the ISO 4406 code, use clean, sealed quick connect couplings, and keep fittings capped when open. |
| Overheating & Seal Failure | Undersized cooling, oil running too hot, or seal material not compatible with the fluid and temperature, so seals harden, swell, or extrude. | Size cooling systems for machinery to the duty cycle and select o ring sealing systems in a compound matched to fluid and temperature. |
| Inconsistent Force Or Speed | Mismatched valves and pumps, internal leakage, or misaligned drive components that make motion erratic or slow. | Size the circuit as a whole, check directional control valves and pressure control valves against flow, and align shaft couplings and drive parts at install. |
Standards & Compliance
ISO 4413 Hydraulic Fluid Power Safety ISO 4414 Pneumatic Fluid Power Safety ISO 4406 Fluid Cleanliness Code ANSI B11.2 Hydraulic Power Press Aware ISO 9001 Quality
One Circuit, Specified As One System
Our fluid power engineers review your press, brake, baler, or machine tool circuit and specify hose, fittings, valves, cylinders, and seals that work together, not just part by part.
Get expert guidance when you need it. Our support team is here to provide you with the right solutions.
