About Servo Press Machine

Still Deciding Which Electric Servo Press to Choose? Read On to Make the Right Decision with Confidence.

All You Need to Know About Servo Press Machine

What is a Servo Press?

A servo press (or electric servo press) is a cutting-edge, high-precision press machine that utilizes advanced servo motor technology and intelligent servo drive controllers to regulate motion, force, and operational accuracy.

In a traditional setup, the high-capacity electromechanical motor converts electrical energy into mechanical power and drives precision gears to control the ram movement. However, our servo press features a direct-drive system, e.g., the TNB-EX Series, NB-EX Series, TNB-EO Series, and TNC-EO Series. Here, the servo motor is directly connected to the ram, eliminating the need for intermediate components like precision gears for power transmission. This direct-drive design not only simplifies the structure but also significantly reduces energy losses and transmission errors.

The servo drive controller, based on digital optimization, enables real-time adjustments to the ram trajectory, including speed, position, and pressure, ensuring unmatched flexibility and repeatability. Whether it’s the traditional gear-driven mechanism or our advanced direct-drive system, the key lies in the precise control provided by the servo technology.

Their programmable automation capabilities reduce downtime, enhance energy efficiency, and support high-mix production, making them the preferred choice for smart factories prioritizing quality and operational agility.

Key Advantages of Electric Servo Presses

Servo presses deliver ±0.01mm precision, programmable motion control, and 70% energy savings, enabling agile, high-speed stamping for automotive, aerospace, and precision electronics manufacturing.

Precision Redefined

±0.01mm Repeatability

Essential for producing high-tolerance stamping press parts like micro-electronic contacts or automotive stamping press components.

Dynamic Speed-Pressure Control

Programmable ram motion curves (e.g., rapid descent → slow forming → dwell → fast return) are managed by advanced press controls, eliminating material stress in delicate processes like thin-metal stamping.

Unmatched Flexibility

Fully Customizable Strokes

Adjust ram speed (0-1,500 SPM) and stroke length (e.g., 3″ working stroke within 7″ capacity) via intuitive press controls, ideal for metal stamp press applications with complex geometries.

Multi-Stage Forming

Execute complex sequences (stamping + tapping + trimming) in a single stroke with BDC dwell capability.

Energy & Cost Efficiency

70% Lower Energy Consumption

Zero flywheel idle loss + load-sensing servo motors reduce power use vs. conventional metal stamp press systems.

Maintenance-Free Operation

Belt/clutch/brake elimination cuts lubrication needs and downtime by 40%.

Intelligent Production

Smart Process Monitoring

Real-time alerts for force deviations, die life tracking, and traceable production data via IoT-enabled HMI – all centralized through unified press controls.

Plug-and-Play Tooling

Rapid parameter switching (＜5 mins) for high-mix batches.

Industrial-Grade Performance

High-Speed Capability

Achieve 1,000+ strokes/minute for mass production of connectors or micro-motors, surpassing traditional metal stamp press cycle rates.

75 dB Low Noise

Direct-drive technology eliminates gear/clutch noise for safer shop floors.

Safety & Durability

Dual Safety Compliance

CE/UL-certified with light curtains, emergency stops, and dual-hand operation.

50% Longer Lifespan

Reduced mechanical wear from servo-controlled soft starts/stops.

How Does a Servo Press Work?

The servo press operates on a closed-loop control system, combining servo motors, high-resolution encoders, and pressure sensors to achieve dynamic, programmable performance:

Servo Motor & Drive Controller Synergy

The servo motor acts as the direct power source, eliminating energy-wasting flywheels.
The drive controller translates user-defined parameters (e.g., speed curves, dwell time) into precise torque and motion outputs.

Programmable Ram Motion

4-Stage Customization:

Fast Approach: Accelerate the ram to minimize cycle time.
Controlled Contact: Slow down before material contact to prevent deformation.
Precision Forming: Maintain preset pressure and dwell time for consistent quality.
Rapid Return: Optimize reset speed for maximum productivity.

Real-Time Feedback & Adjustments

Encoders monitor motor position/speed, while pressure sensors ensure force accuracy (±1%).
Instant corrections prevent overloads, tooling damage, or defective parts.

Energy Efficiency

Power is only consumed during active pressing, reducing energy use by 30–70% compared to conventional presses.

Applications of Servo Presses

Ideal for demanding industries like automotive, aerospace, and electronics manufacturing, servo-electric presses deliver exceptional accuracy for complex stamping, forming, and assembly processes.

Automotive Manufacturing

High-speed stamping of body panels, brackets, and EV battery components.
Multi-stage forming of transmission gears and sensor housings.

Electronics Manufacturing

Micro-stamping of connectors, heat sinks, and lead frames.
Delicate embossing of flexible PCBs and RFID tags.

Emerging Applications

Consumer Tech: Smartphone chassis forming, wearables.
Energy: Solar cell tab welding, fuel cell bipolar plates.

Medical Device Production

Cleanroom-compatible stamping of surgical tools and implant casings.
Micro-hole punching in biodegradable stents.

Servo Press vs. Traditional Press

Here’s a direct comparison of servo presses and conventional mechanical/hydraulic presses, focusing on critical performance and operational factors:

Power & Efficiency

Servo Press	Traditional Press
✅ 70-80% energy efficiency – Only consumes power during active pressing.	❌ 30-50% efficiency – Constant flywheel/gear friction wastes energy.
✅ Load-sensing motors adjust torque dynamically to material resistance.	❌ Fixed-speed operation – Excess force damages delicate parts.

Precision & Control

Servo Press	Traditional Press
✅ ±0.01mm repeatability via closed-loop feedback (linear scales).	❌ ±0.1-0.3mm accuracy – Limited by mechanical backlash.
✅ Programmable ram curves – Speed/force changes mid-stroke.	❌ Fixed motion profile – Cannot adapt to material variations.

Flexibility

Servo Press	Traditional Press
✅ Stroke length/speed adjustable – 0-1,500 SPM, 1mm-300mm strokes.	❌ Fixed stroke/speed – Requires mechanical adjustments (hours).
✅ Multi-stage forming – Stamping + tapping in one cycle.	❌ Single-operation focus – Needs secondary machines.

Maintenance & Costs

Servo Press	Traditional Press
✅ No belts/clutches – 40% lower maintenance costs.	❌ Weekly lubrication – Belts, gears, and flywheels wear rapidly.
✅ 50% longer lifespan – Servo soft-start reduces component stress.	❌ Frequent breakdowns – Sudden stops damage clutch/brakes.

Application Suitability

Servo Press	Traditional Press
✅ High-mix production – Quick die/tooling changes (<5 mins).	❌ Mass production only – Setup time >1 hour for new batches.
✅ Thin/soft materials – Precision control prevents warping.	❌ Thick metals only – Risk of cracking thin sheets.

How to Choose a Servo Press

Define Your Technical Requirements

Tonnage & Force Profile:

Match press capacity (10-2,000+ tons) to material thickness and forming energy.

Example: 100-ton servo presses handle most metal stamp press tasks for automotive brackets.

Stroke Length & Speed:

Opt for 150-300mm strokes for deep drawing; 0-1,500 SPM for high-speed stamping press parts production.

Precision Grade:

±0.01mm for medical implants; ±0.05mm suffices for general metal stamping equipment.

Evaluate Application-Specific Needs

Industry	Key Features
Automotive	High-speed (800+ SPM), multi-stage forming, IoT-enabled press controls.
Electronics	Micro-stamping (<0.1mm accuracy), low-vibration operation.
Aerospace	AS9100-compliant force monitoring, titanium-compatible tooling.

Prioritize Control System Capabilities

Essential Features:

Programmable ram motion curves (speed/force/dwell time).

Real-time press controls with HMI touchscreens.

Data export for QA traceability (e.g., force-time graphs).

Advanced Options:

AI-driven predictive maintenance alerts.

Integration with factory MES/ERP systems.

Compare Energy Efficiency & TCO

Cost Factor	Servo Press	Traditional Press
Cost	Higher initial purchase price, but lower overall cost in the long term due to energy-saving and low-maintenance characteristics.	Lower initial purchase price, but higher overall cost in the long term considering high energy consumption and maintenance costs.
Maintenance/Year	Lower. Its relatively simple structure and fewer moving parts require less frequent maintenance, leading to lower annual maintenance costs.	Higher. Mechanical transmission components require frequent maintenance, such as lubrication and replacement of worn-out parts, which results in higher annual maintenance costs.

FAQs

What are the differences between servo presses of different tonnages?

In servo press systems, “tonnage” refers to the nominal force a machine can apply. Higher tonnage (e.g., 200- 500+ tons) handles thick or high-strength materials, while lower tonnage,s like a 5-ton servo press excel in precision tasks:

5-25 ton servo presses: Ideal for thin sheets (0.1-2mm) and small parts (e.g., electronics, micro springs).
50-100 ton servo motor presses: Suited for medium-thickness metals (2-6mm) and bending/shallow forming.
200- 500+ ton servo-driven stamping presses: Built for heavy-duty tasks like automotive parts or deep-drawn components.

For details on selecting the right electric servo press for your needs, please read our blog: [9 key factors in selecting a servo press].

About Servo Press Machine

All You Need to Know About Servo Press Machine

What is a Servo Press?