Gearboxes with complete transmissions

Product description

Our gearbox range also includes complete transmissions designed for certain agricultural machinery sectors where, besides gearboxes, the mechanical transmissions used also require other mechanical components in order to obtain:

  • transmissions with gearbox and gear trough for rotary harrows;
  • transmissions with transfer box on the support frame, double universal joints and bevel gear pairs complete with rotating plate for hay tedder-turners;
  • load-bearing crossbars with transfer box and side extensions for frame and drawbar couplings for round balers;
  • assemblies with three housings on load-bearing frame with fourth low speed shaft, for double-disc fertilizer spreaders;
  • disc mowing attachments with or without side gearbox, both discs with blades fastened by bolt and nut and quick release discs.

The technical features vary to a considerable extent since they depend on the application and the customers’ requirements, below is only a brief description of our range which includes the following series: B – RB – R | RE-RX – PH – TE – Inter-row harrow

Series B (Cutter bars)

General features: The CMR cutter bar range is designed for professional agricultural applications and includes configurations from 4 to 16 discs, with solutions for side-mounted, front-mounted and trailed mowers, as well as professional machines with large working widths. The range is divided into four main families:
  • B – standard cutter bar with integrated gearbox
  • BF – standard cutter bar without integrated gearbox
  • BA – professional cutter bar with quick safety system and advanced cutting system
  • BAL – high-power professional cutter bar with integrated gearbox, advanced cutting system and quick safety system
All versions use a fully mechanical oil-bath transmission and are available with either a conventional blade fastening system or Quick Change. The range covers power ratings from 28 HP to 140 HP, allowing the most suitable configuration to be selected according to the machine and application.

Standard cutter bar with integrated gearbox

Series B is CMR’s compact, cost-effective solution, with the gearbox integrated directly into the cutter bar, and is intended mainly for side-mounted mowers.

It is available in 4, 5, 6, 7 and 8-discs configurations, with cutting widths from 1.650 to 3.176 mm.

    • Features:
    • Gearbox integrated into the cutter bar
    • Available configurations: 4 / 5 / 6 / 7 / 8 discs
    • Transmission ratio 1:2,66
    • Recommended input speed: 1.100 rpm approximately
    • Disc rotation speed: approximately 3.000 rpm
    • Power rating from 28 to 56 HP, depending on the number of discs
    • Cutting widths from 1.650 to 3.176 mm
    • Conventional safety system with safety hub
    • Available with conventional blade fastening or Quick Change

Applications: side-mounted mowers.

Standard cutter bar without integrated gearbox

Series BF is a cutter bar with direct input to the disc transmission and no integrated gearbox.

It is available in 5, 6, 7, 8 and 9-discs configurations, with cutting widths from 2.069 to 3.589 mm.

    • Features:
    • Cutter bar without integrated gearbox
    • Direct input to the first disc
    • Available configurations: 5 / 6 / 7 / 8 / 9 discs
    • Ratio 1:1
    • Input speed: 3.000 rpm approximately
    • Power rating up to 80 HP
    • Cutting widths from 2.069 to 3.589 mm
    • Conventional safety system with safety hub
    • Available with conventional blade fastening or Quick Change

Applications: front-mounted mowers e light trailed mowers.

Professional cutter bar with advanced cutting system

Series BA was developed for high-productivity professional applications.

Its special configuration places the discs ahead of the transmission line, improving crop flow during cutting. The safety system is designed so that the affected components can be replaced without opening the cutter bar.

It is available in 6, 7, 8, 9 and 10-disc configurations, with cutting widths from 2.550 to 4.150 mm.

    • Features:
    • Available configurations: 6 / 7 / 8 / 9 / 10 discs
    • Without integrated gearbox
    • New professional transmission
    • Ratio 1:1
    • Input speed: 3.000 rpm
    • Power rating up to 115 HP
    • Cutting widths from 2.550 to 4.150 mm
    • Discs positioned ahead of the transmission line
    • Geometry designed to improve crop flow
    • Disc rotation direction can be reversed by rotating the flange
    • Replaceable safety system without opening the cutter bar
    • Available with conventional blade fastening or Quick Change
    • Optional liftable and wear-resistant lowers skids

Applications: professional high-productivity front-mounted and trailed mowers.

High-power professional cutter bar with integrated gearbox

Series BAL is CMR’s solution for professional applications requiring high power and large working widths.

The transmission integrates the gearbox directly into the cutter bar and is designed to handle power ratings up to 140 HP.

It is available in 12, 14 and 16-disc configurations, reaching a maximum cutting width of 6.600 mm.

      • Features:

     

    • Gearbox integrated
    • Available configurations: 12 / 14 / 16 discs
    • Transmission ratio 1:3,2
    • Input speed: 1.000 rpm
    • Disc rotation speed: approximately 3.200 rpm
    • Power rating up to 140 HP
    • Cutting widths from 5.000 to 6.600 mm
    • Transmission designed for high-power applications
    • Direct input to the gearbox
    • Disc rotation direction can be reversed by rotating the flange
    • Replaceable safety system without opening the cutter bar
    • Available with conventional blade fastening or Quick Change
    • Optional liftable and wear-resistant lowers skids

Applications: professional machines with wide working widths and combine harvester attachments.

Series RB (Crossbars for round balers)

General technical features: crossbars for round balers; cast iron housing GS400; power ratings 47.6 HP (540 rpm) up to 125.8 HP (1 000 rpm).

RB18

  • Features: transmission ratio 2.08:1; power ratings up to 47.6 HP (540 rpm); cast iron housing GS400
  • Applications: Bales; round bales
  • Accessories: not available

RB25

  • Features: transmission ratio 2.09:1; power ratings up to 97.9 HP (540 rpm); transmission ratio 3.00:1; power ratings up to 95.2 HP (1 000 rpm); cast iron housing GS400
  • Applications: Bales; round bales
  • Accessories: not available

RB35

  • Features: transmission ratio 3.92:1; power ratings up to 125.8 HP (1 000 rpm); cast iron housing GS400
  • Applications: Bales; round bales
  • Accessories: not available

Series R | RE-RX (Integral bevel gearboxes)

General technical features: triple-gearbox assembly in bearing frame with main 4-shaft gearbox; power ratings up to 15 HP (540 rpm); aluminium material.

RE:

  • Features: 2:1 transmission ratio; power up to 15 HP (540 rpm); aluminium material
  • Applications: Fertilizer spreaders
  • Accessories: n.a.

RX:

  • Features: 2:1 transmission ratio; power up to 15 HP (540 rpm); aluminium material
  • Applications: Fertilizer spreaders
  • Accessories: n.a.

Series PH (Complete units for rotary harrows)

General features: CMR Agriculture offers a complete range of transmission units for rotary harrows, supplied assembled, tested and ready for integration into the machine. Each unit includes the complete mechanical transmission, with gear train, shafts, tine-holder hubs, supports, bearings and integrated main gearbox. The manufacturer then completes the machine with its own structural steelwork, frame, rear roller and guards. Tines are normally supplied separately, but may be available on request. This complete solution allows OEMs to simplify the design and manufacture of the harrow, starting from a CMR mechanical assembly that is ready to install.  

The range includes several sizes and configurations for power ratings from 40 to 300 HP and is designed for use with CMR Agriculture Series E gearboxes:

  • Serie EM – fixed ratio: EM40, EM80, EM110, EM130 and EM300
  • Serie EC – speed change: EC110, EC130, EC220 and EC300

The combination of transmission and gearbox allows the assembly to be configured according to the required power, working width and application.

Three families for different applications

CMR complete transmission units for rotary harrows are divided into three main families:

PH – Standard
Compact solutions for small rotary harrows, hobby machines and inter-row applications.

PHC – Professional
Professional versions designed for intensive agricultural use, with reinforced transmissions and case-hardened gears.

PHH – Heavy Duty
Reinforced versions for high power and demanding working conditions, with larger gears, reinforced supports and a thicker unit structure.

A complete solution for rotary harrow manufacturers

With the PH range, CMR Agriculture supplies more than a gearbox or individual transmission components: it provides a complete transmission unit with the entire mechanical system already assembled, finished and tested. The manufacturer can integrate the CMR assembly into its machine and focus on the structural steelwork, frame and other harrow-specific elements. From compact 40 HP applications to professional 300 HP Heavy Duty solutions, the range makes it possible to configure the transmission according to working width, power and the machine’s specific requirements.

PH40:

Complete transmission unit for small rotary harrows

PH40 is CMR’s compact solution for small rotary harrows and inter-row applications. The gearbox is positioned centrally on the unit.

    • Features:
    • Available lengths from 800 to 1.500 mm
    • Gearbox EM40
    • Gearbox mounted centrally on the unit
    • Power rating up to 40 HP at 540 rpm
    • Complete mechanical transmission, pre-assembled
    • Compact configuration for small machines

Applications: hobby and inter-row rotary harrows.

PH40L:

Complete transmission unit for inter-row harrows with side drive

PH40L is specifically designed for applications requiring the transmission to be positioned at the side. This configuration is particularly suitable for inter-row harrows.

    • Features:
    • Available lengths from 800 to 1.500 mm
    • Gearbox EM40
    • Gearbox side-mounted
    • Power rating up to 40 HP at 540 rpm
    • Complete mechanical transmission, pre-assembled

Applications: hobby and inter-row rotary harrows.

PH100:

Complete transmission unit for rotary harrows up to 110 HP

PH100 is a versatile, cost-effective solution for small and medium-power rotary harrows, available with different gearbox configurations.

    • Features:
    • Available lengths from 1.500 to 3.000 mm
    • 8-hole configuration with plate
    • Quick-release system
    • Compatible with EC110 gearbox
    • Power rating up to 90 HP at 540 rpm
    • Power rating up to 110 HP at 1,000 rpm
    • Compatible with fixed-ratio EM110 gearbox, up to 90 HP at 540 rpm
    • Case-hardened central gear
    • Hardened and tempered side gears
    • Available with conventional tine fastening or Fast Change

Applications: small and medium-power rotary harrows.

PH100C:

Professional complete transmission unit

PH100C is designed for professional and more intensive use. Compared with the standard versions, its transmission uses fully case-hardened gears, increasing the strength and service life of the mechanical assembly.

    • Features:
    • Available lengths from 2.000 to 2.500 mm
    • 8-hole configuration with plate
    • Quick-release system
    • Compatible with EC110 and EC130 gearboxes
    • Power rating up to 130 HP at 1,000 rpm
    • Compatible with EM110 and EM130, up to 110 HP at 540 rpm
    • All gears case-hardened
    • Available with conventional tine fastening or Quick Change

Applications: professional rotary harrows.

PH130C:

Professional complete transmission unit for high power

PH130C is designed for wider, higher-power professional rotary harrows. The transmission uses larger case-hardened gears than the lower-rated versions to support intensive agricultural applications.

    • Features:
    • Available lengths from 2.500 to 4.000 mm
    • 8-hole configuration with plate
    • Quick-release system
    • Gearbox EC220
    • Power rating up to 220 HP at 1,000 rpm
    • All gears case-hardened
    • Gears thicker than those used in the PH100C
    • Available with conventional tine fastening or Quick Change

Applications: high-power professional rotary harrows.

PH130H:

Heavy Duty complete transmission unit up to 300 HP

PH130H is the Heavy Duty solution in the CMR range, designed for high-power professional rotary harrows and particularly demanding working conditions.

The entire assembly is sized and reinforced compared with the standard versions, from the gear train and lower supports through to the unit structure.

    • Features:
    • Available lengths from 3.000 to 4.500 mm
    • 8-hole configuration with plate
    • Quick-release system
    • Compatible with EC220 and EC300 gearboxes
    • Power rating up to 300 HP at 1,000 rpm
    • For double rotary harrows, a configuration with EM300, up to 300 HP at 1,000 rpm
    • All gears case-hardened and thicker
    • Lower supports with double bearings
    • Thicker unit structure
    • Available with conventional tine fastening or Quick Change

Applications: Heavy Duty professional rotary harrows, high-power machines and particularly demanding working conditions.

Series TE | Tedder (Complete mechanical assemblies for hay tedder-turners)

General technical features: complete mechanical assemblies for hay tedder-turners; rotating elements with bevel gear pairs and double universal joints; housings and extensions with opening/closing and adjustment connections.

G40

  • Features: transmission ratio 2.86:1; power ratings up to 33 HP (540 rpm); cast iron housing GS400
  • Number of rotors 4
  • Working width 4.6 m
  • Applications: Mounted and trailed hay tedders
  • Accessories: not available

G60

  • Features: transmission ratio 2.86:1; power ratings up to 33 HP (540 rpm); cast iron housing GS400
  • Number of rotors 6
  • Working width 6.8 m
  • Applications: Mounted and trailed hay tedders
  • Accessories: not available

The data shown in the specific product tables are indicative and not binding. CMR Agriculture reserves the right, at any time, to modify them at its own discretion, without any obligation to notify its Customers with a view to continuous improvement of its products and services.

For further information and specific variants, please contact our dedicated offices or consult the GEARBOXES Technical Catalogue.

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