s.r.l. designs and realizes speed reducers (parallel shafts, right angle
shafts, planetary) for big powers having the following technical characteristics:
case: made of steel
plates welded together, with air breather, inspection doors and hooks
and wheels are made of nickel-chrome-molybdenum case-hardened alloy-steel
or hardened and tempered steel, with profile finished as appropriate after
shafts: made of
steel, hardened and tempered, if not designed as a unique piece with pinions;
bearings: all bearings
are designed for extremely long running life, anti-friction type, top
oil splash, forced lubrication whenever specified (highlighted areas);
clockwise and counter-clockwise rotations are always possible.
SELECTION OF REDUCER
Our reducers are rated in accordance to AGMA standards. To select a reducer
the following data must be known:
of the driven machine;
and specifications of the driving machine;
and specifications of the driven machine;
All reducers are subjected to an operating test “on unload
conditions” for the necessary time.
Upon request we submit a test certificate which, besides the operating
feauters, includes the following:
Request a catalog
clearances and contact %;
oil pressure on reducers fitted with such equipment.
We usually submit certificates for chemical analysis
and mechanical tests on materials (steel works).
Planetary gearbox load test – Torque 3600 kNm
APPLICATION FIELDS OF REDUCERS
Examples of gearboxes application in various sectors:
- Steel works and metal working:
Winders and coilers, wire rod mills, blanking machines and presses,
continuously running conveyors without connections, roller bending
machines for steel plates, pinch rolls, ingot pushers, rotary shears
for plates, flat drawing machines (main drive).
For variable density liquids, for liquids with suspended solids, for
For medium/heavy duty, for mine skips, for towing of cars, for towyng
- Concrete mixers.
For paper, rubber, plastics, fabrics.
- Paper mills:
Agitors, mixers, winders – reelers, drying cylinders, jordans,
beaters, thickeners, washers, bleaching presses, couch presses –
refiners, knife wheels – refiners, rolls and suction cylinders,
drum barkers, hydraulic and mechanical barkers, felt shakers, super-calendars,
felt stretchers, stocking chests, cutters – polishers, conveyors,
- Assembly lines:
With uniform loading and feeding, for heavy duty.
Lobe type, reciprocating single-cylinder/multiple-cylinder, centrifugal.
Bucket with uniform load, bucket for heavy duty, freight, passengers,
- Rotary furnaces in general.
- Rotary furnaces for cement kilns.
For minerals or stones, for sugar mills.
- Generators (excluding welding generators).
- Rubber and plastics:
Extruders, sheet rolling mills, laboratory equipment, mixers –
refiners, breakers for vulcanized rubber.
- Clay working machines:
Mixers, clay working machines, mullers for foundry sand, presses for
bricks and briquettes.
- Rotary mills with bars, balls, stones.
- Oil industry:
Press – filters, rotary furnaces, coolers.
With gears, lobes or blades, reciprocating single – acting with
three or more cylinders, reciprocating double – acting with
two or more cylinders, centrifugal, batching.
- Rotary coolers.
Shaker – type, chain, screw, belt, plate, scraper, bucket, heavy
Centrifugal or blade – type, lobe – type – large
fans for mines, for industrial use.
- Sugar mills:
Crushers, mills, cane and beet cutters, presses.
Gearbox for sizing mill
Endproducts examples in the following sectors: cement
sugar industry >>