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Metal Forming

Upsetting &
Forging Machines

Electrical upsetting machines and servo screw presses that form precise, defect-free bulbs and flanges from bar stock. The benchmark for engine valve production in India — with near-zero rejection rates proven across millions of parts per year.

~0%
Rejection rate
ETO
Engineered-to-order
Servo
Closed-loop control throughout
I4.0
Remote monitoring capable

The science of getting the bulb shape right — every time

ETA was among the first to understand that producing a perfect engine valve bulb is pure science, not operator art. The result: machines that deliver the correct bulb shape, consistently and without cracks.

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Near-zero rejection

IGBT-controlled heating with three-phase input, sinusoidal power, and optical pyrometer temperature sensing prevents over-heating and eliminates root cracks — the industry's most common cause of rejection.

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Consistent, repeatable bulb shape

Servo-controlled hydraulic anvil and upsetting units ensure the same bulb geometry on every cycle. All settings except jaw and anvil change can be made offline — zero production interruption.

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Smallest footprint in class

Vertical configuration occupies significantly less floor space than horizontal competitors. For high-density valve lines, this is a decisive manufacturing advantage.

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Fully automated options

Auto-loading from bins, component transfer, and integrated robot handling available. The complete High-Speed Production Cell pairs two upsetters with a servo screw press and robot for one valve forging every 5 seconds.

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Industry 4.0 ready

Real-time upsetting load measurement via load cell. Process data logging and remote monitoring capability built in. Integrates with ETA's connected manufacturing platform.

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Low maintenance design

Lubrication provided to all sliding parts. Robust hydraulic power pack design with proven long-term reliability. ETA's service team and spare parts available throughout the machine's life.

Machines for every valve and forging requirement

All machines are engineered-to-order. Configurations below represent the standard range — customised to your bar geometry, production volume and automation level.

Electrical Upsetter
Single & Twin Head Upsetters

Vertically configured machines for producing flanged bulbs from bar stock — the core of every engine valve manufacturing line. Single-head (20kVA) and twin-head models with auto loading and unloading. IGBT heating control ensures crack-free bulbs every cycle.

Max upsetting force2,000 kgf
Bar diameter range4.4 mm – 9 mm
Bar length range90 mm – 300 mm
ControlIGBT, servo hydraulic
IC engine valvesFlanged componentsBar-to-bulb forming
Servo Screw Press
Positive-Drive Screw Press

Servo-controlled positive-drive screw press for precision forging of valve heads. Pairs with upsetters in automated cells. CNC-controlled forming ensures consistent head geometry across millions of cycles without operator dependency.

DriveServo motor, positive drive
ControlCNC, fully programmable
IntegrationRobot-ready for cell build
Valve head forgingHigh-speed production cells
Production Cell
High-Speed Engine Valve Cell

Complete automated cell: two twin-head upsetters + servo screw press + component-handling robot. Synchronized for continuous production. Capable of one valve forging every 5 seconds — the fastest commercially available valve forging line.

Cycle time1 forging per 5 seconds
Components2 upsetters + press + robot
LoadingFully automated, bin-fed
High-volume valve linesTurnkey cell supply
Custom Configuration
Custom Upsetting Solutions

Non-standard materials, larger bar diameters, specialty alloys, or integration with your existing line? ETA's engineering team designs from your requirements outward — not from a catalogue inward. Tell us your part and volume; we'll specify the machine.

ProcessEngineered-to-order
SupportFeasibility & trials included
Specialty alloysNon-standard geometriesLine integration
IGBT heating control — three-phase sinusoidal input, optical pyrometer temperature sensing, no over-heating
Auto loading & unloading — bin-fed component handling as standard; robot integration available
Load cell measurement — real-time upsetting load monitoring with data logging
Offline parameter setting — all settings except jaw/anvil change can be made without stopping production
Lubricated slides — all sliding parts lubricated; low-maintenance design for maximum uptime
ETA service backing — spare parts, annual maintenance contracts and remote support available throughout machine life

Building or expanding an engine valve line?

Tell us your production volume, bar dimensions and alloy. We'll specify the right machine or complete automated cell — and show you the part quality before delivery.

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