| 1 | 10–25 tons | Workshop / C-frame press | Compact open gap or benchtop frame | Bushing removal, straightening, light assembly, small forming operations | Small components, generally handled manually | Single-cylinder circuit; hand pump or compact power unit; low oil volume | Guarding of pinch points, hose protection, pressure limitation, safe manual controls, and prevention of unexpected cylinder movement |
| 2 | 30–50 tons | C-frame hydraulic press | Welded or fabricated three-sided frame | Light stamping, punching, bearing installation, small batch forming | Small to medium metal parts | Electric motor-driven pump; directional control valve; adjustable relief valve | Emergency-stop function, pressure control, secure pipe and hose routing, and protection against accessible moving parts |
| 3 | 60–100 tons | Four-column press | Four-post guided platen with open loading access | Rubber molding, composite compression molding, deep forming, assembly pressing | Medium-size components and molds | Hydraulic power unit with pump, reservoir, filtration, pressure gauge, and controlled return circuit | Defined operating pressure, protected energy storage, filtration and contamination control, and safe depressurization provisions |
| 4 | 120–200 tons | H-frame shop press | Rigid H-frame with adjustable bed or bolster | Heavy maintenance work, shaft straightening, tube bending, die pressing, structural repair | Medium to large fabricated parts | Double-acting cylinder commonly used; higher-flow pump and robust return plumbing | Mechanical support for adjustable beds, load-rated tooling, hose-burst protection, and controls that prevent unintended actuation |
| 5 | 250–400 tons | Production four-column press | Four-column or prestressed-frame construction | Industrial forming, forging preforms, composite panels, rubber products, and large assemblies | Large components requiring guided tooling | Multi-stage pump or variable-displacement pump; proportional pressure and flow control may be used | Risk assessment for automated cycles, interlocked guarding, controlled acceleration and deceleration, and validation of pressure-control functions |
| 6 | 500–630 tons | Deep-drawing / forming press | Four-column or straight-side production frame | Sheet-metal forming, automotive components, appliance panels, and large molded products | Large sheet blanks, dies, and molds | High-flow hydraulic circuit; pressure holding and programmable ram motion are commonly required | Safe sequencing, pressure retention, prevention of uncontrolled descent, temperature management, and clearly defined maintenance isolation points |
| 7 | 800–1,000 tons | Heavy-duty forming press | Rigid four-column or monolithic frame with large bolster | Large structural parts, forging, high-area compression molding, and heavy-duty assembly | Large and high-mass workpieces | High-capacity reservoir, multiple pumps, cooling system, large-bore cylinders, and electronic monitoring | Energy isolation, rated lifting and support devices, pressure relief redundancy where required, leak prevention, and protection from stored hydraulic energy |
| 8 | 1,250–2,500 tons | Large industrial press | Prestressed four-column or heavy straight-side frame | Large forging, aerospace structures, thick-section forming, and oversized composite tooling | Very large dies, molds, and structural components | Multiple synchronized cylinders or high-capacity hydraulic power units; closed-loop monitoring is often applied | Detailed circuit documentation, fail-safe control design, synchronized actuator monitoring, guarded access, and controlled release of trapped pressure |
| 9 | 3,000–5,000 tons | Heavy forging / compression press | Specialized heavy-duty frame with large platen and guided ram | Large forgings, aerospace-grade components, energy-sector parts, and high-load compression work | Oversized, high-mass metal or composite workpieces | Multiple high-flow pumps, large cylinders, advanced cooling, filtration, and centralized control monitoring | Comprehensive risk assessment, redundant safety functions where needed, pressure shock control, robust pipe supports, and documented maintenance procedures |
| 10 | 6,000–10,000+ tons | Ultra-heavy forming press | Custom-engineered multi-column or heavy prestressed structure | Large-scale forging, shipbuilding components, aerospace structures, energy infrastructure, and specialized industrial forming | Extremely large dies, molds, forgings, and structural assemblies | Redundant or multi-pump systems, synchronized cylinders, extensive cooling and filtration, high-capacity reservoirs, and centralized supervisory control | Full hydraulic risk analysis, verified safety-related controls, secure pressure-energy isolation, structural load validation, guarded work zones, and documented commissioning tests |