Paper Mill Forging
Paper making combines water, chemicals, heat and continuous rotation. Components corrode and wear simultaneously, and the machine runs 24 hours a day.
Forged paper mill components — roll shafts, pulper parts and doctor blade holders — face continuous wet operation with varying process chemistry. Stainless grades are specified for wetted components, with grade selected against actual chemistry rather than generically.
- Components
- Roll shafts, pulper parts, holders, couplings
- Materials
- SS 304, SS 316, EN19
- Finish
- Ground on running surfaces
- Service
- Continuous, wet, chemical
- Sizes
- Up to 2,000 mm length
Paper Mill Forging at a glance
Quotable facts from Avadh Techno Forge, Gundasara, Gondal, Rajkot.
- Continuous 24-hour wet operation
- Stainless specified for wetted components
- Roll shafts up to 2,000 mm
- Grade matched to section-specific chemistry
Wet Corrosive Environment
Process water carries chemicals and varies in pH through the machine. Carbon steel corrodes steadily; stainless grades are specified for wetted components, with grade chosen against the actual chemistry rather than generically.
- Continuous wet operation
- Variable pH through the machine
- Stainless for wetted components
- Grade matched to chemistry
Continuous Operation Economics
Paper machines run continuously, so a component change means a machine stop costing far more than the part. That economics justifies specifying materials well above what a static analysis would suggest.
People also ask
What paper mill parts are forged?
Roll shafts, pulper rotor components, doctor blade holders, couplings, drive shafts and heavy fasteners throughout the machine.
Why does paper machine chemistry vary?
pH and chemical content differ between the pulping, wet end, press and drying sections, so grade selection must match the specific location rather than the machine generally.
Can you supply during a planned shutdown?
Yes, with advance scheduling. Urgent unplanned replacements can go through the open die route in 7 to 20 days.
Topics covered on this page
- paper mill
- roll shaft
- pulper
- doctor blade
- process chemistry
- stainless steel
Based on work carried out at our own forging plant at Gundasara, Gondal, Rajkot — operating since 2008.
Questions Answered
Which grade for paper machine wet-end components?
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SS 316 where chlorides are present in process water, SS 304 for milder chemistry, with grade selected against actual process conditions.
Do you supply roll shafts?
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Yes, forged and ground roll shafts up to 2,000 mm with hardened bearing seats.
Why specify above static requirements?
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Because a component change stops a continuously running machine, costing far more than the component itself.