Universal mounting design
Rigid and precise monolithic casing
Wide range or accessories and non-standard designs
Easy and functional shaft-mounting design
Compliance with ATEX 94/9/EC directive (UT.D 123)

Large size gear reducers produced in series specifically conceived for granting highest reliability in heaviest application conditions. Universal mounting design Minimum maintenance requirements Compliance with ATEX 94/9/EC directive (UT.D 123)

Universal mounting design Cylindrical worm shaft with ground and superfinished involute profile (ZI) Load capacity and efficiency to BS 721-83 integrated with iso/CD 14521 Forced ventilation IEC motors Rigid and precise cast iron monolithic casing. Comprehensive range of accessories and non-standard designs Easy and functional shaft mounting systems Worm wheels of A04 gear reducers and gearmotors made of nickel bronze with controlled phosphor content, in order to achieve improved performance from 6 to 18%, a higher load capacity, greater reliability and more wear resistance Compliance with ATEX 94/9/EC directive (UT.D 123)

2, 3 or 4 reduction stages for both coaxial and right angle shaft Motor standardized to IEC Nodular cast iron casing with thick walls and stiffening ribs Wide range of accessories and non-standard designs Easy and functional shaft-mounting design

Universal mounting design
Strong patented casing Wide size range Rigid and precise cast iron monolithic casing Pinion of final stage with three bearings Compliance with ATEX 94/9/EC directive (UT.D 123)

Especially designed for belt conveyor drives
Easy shaft-mounting design Strong casing

Standard low speed shaft, oversized and hollow low speed shaft for multiple drives, in series or parallel configuration, compact and economic
67 designs in all possible mounting positions
Cast iron casings
Oil bath lubrication (grease lubricated up to size 125)

Universal mounting design Rigid and precise monolithic casing in cast iron Cylindrical worm shaft with ground and superfinished involute profile (ZI) Load capacity and efficiency to BS 721-83 integrated with ISO/CD 14521 Forced ventilation IEC standard motor Wide range of accessories and non-standard designs Easy and functional shaft-mounting design Worm wheels of A04 gear reducers and gearmotors made of nickel bronze with controlled phosphor content, in order to achieve improved performance from 6 to 18%, a higher load capacity, greater reliability and more wear resistance Compliance with ATEX 94/9/EC directive (UT.D 123)

Interchangeability (hollow low speed shaft diameter)
Motors to IEC standards
Universal mounting with lower feet, integral with casing and B14 flange on 2 faces
Rigid and precise cast iron monolithic casing with motor mounting integral flange
Improved and up-graded modular construction both for components and assembled products
High, reliable and tested performances (Ni bronze)
Reduced maintenance
Generous internal space between train of gears and casing

Universal mounting design
Strong patented casing
Wide size range
Rigid and precise cast iron monolithic casing
IEC standard motor
Pinion of final stage with three bearings
Compliance with ATEX 94/9/EC directive (UT.D 123)

Maximum interchangeability
Motors to IEC standards
Foot mounting integral with casing
Rigid and precise cast iron monolithic casing
Proportioned bearings to withstand high loads
High and reliable performances
Maximum compactness

Universal mounting design
IEC standard motor
Rigid and precise cast iron monolithic casing
Wide range of accessories and non-standard designs
Easy and functional shaft-mounting design
Compliance with ATEX 94/9/EC directive (UT.D 123)

2, 3 or 4 reduction stages for both coaxial and right angle shaft
Motor standardized to IEC
Nodular cast iron casing with thick walls and stiffening ribs;
Wide range of accessories and non-standard designs
Easy and functional shaft-mounting design

Gear reducers in specific design SR
Maximum torsional stiffness
Minimum angular backlash
High torque
High permissible loads on low speed shaft end
Optimization of worm gear performance
Ground cylindrical gear pairs, accurately lapped bevel gear pairs
Direct fitting of servomotor

1 or 2 planetary reduction stages 
1 or 2 planetary reduction stages and 1 final bevel gear  for right angle shafts
3 classes of low speed shaft angular backlash 
Monolithic casing made of steel 
Wide range of accessories and non-standard designs

Electric motors especially designed for roller tables drives

A.c./d.c. digital converter, with self-adjusting feature on motor's characteristics
and programmable with remote keypad D.c. motor with stator square pack
IP 23 or IP 44 protection
Two thermal overload relays
 

universal mounting having feet integral with housing on 4 faces;
standard solid low speed shaft made of steel with customizable screw shank hole;
gear reducers: input face with machined with fixing holes; high speed shaft end with key;
gear motors: motor directly keyed into hollow high speed shaft provided (Ø 38) with four cuts and hub clamp ;
roller bearings: cylindrical roller bearings (low speed shaft) and tapered roller bearings,
excluding some shafts (high speed shaft) on which bearings are cylindrical roller or ball type;
cast iron single-piece (for size 100 ... 360) housing 200 UNI ISO 185 (spheroidal UNI ISO 1083 for sizes 140, 180, 225, 280, 360, 400 … 451) with stiffening ribs and high oil capacity;
oil bath lubrication; synthetic or mineral oil with filler plug with valve, drain and level plugs;
natural or forced cooling (with inner heat exchanger, coil or independent cooling unit with oil/water heat exchanger);
long model: it is derived from the standard one (completing it) through
the addition of an idle gear between wheel and pinion of the first reduction
stage hence allowing to distance considerably the input and output shafts,
whilst maintaining the same specifications and performances as the standard model.

Rossi HyCLEAN Shield : Chemical nickel-teflo based coating on a properly studied, prearranged and sealed surface offering outstanding adhesion/abrasion/corrosion and thermal shock resistance
Certified resistance to sanifications applying the usual cleansing agents
Highly abrasion and scratch-proof
Resistance to high pressure water jets
Easy flowing surface
Uniform thickness
Approved by NSF

Rossi HyCLEAN Guard : High protection and corrosion-proof dual compound
paint and primer on a properly prearranged surface. High grade corrosion
protection is obtained with suspended lamellar micro particles
of stainless steel.


Highly corrosion and sanification-proof
Approved by USDA

Oil-bath lubrication; gear reducers are supplied filled with synthetic oil «for life» lubrication;
generously proportioned bearings: taper roller bearings for the low speed shaft and full complement needle roller bearings for the planet gears;
single-piece steel planet carrier with bilateral support of planet gears and integrated with low speed shaft.

1 or 2 planetary reduction stages 
1 or 2 planetary reduction stages and 1 final bevel gear  for right angle shafts
3 classes of low speed shaft angular backlash 
Monolithic casing made of steel 
Wide range of accessories and non-standard designs

Gear reducers in specific design SR
Maximum torsional stiffness
Minimum angular backlash
High torque
High permissible loads on low speed shaft end
Optimization of worm gear performance
Ground cylindrical gear pairs, accurately lapped bevel gear pairs
Direct fitting of servomotor

Frequency digital inverter with U/f or open loop flux vector control (series 8200), closed loop vector inverter and servoinverter (series 9300) for a.c. variable speed universal drives with asynchronous and brushless motors and servomotors.

Range of versatile strong and reliable standard asynchronous three-phase motors (HF) or with brake (F0, HFV) with integrated vector inverter for high performance variable speed drives
IP 55 protection