C.A.M.S. Slotting Machine 850

Rack and Pinion System Ram Drive

Available Model Types

Technical Specifications
C.A.M.S. Slotting Machine Model 850
C.A.M.S. Slotting Machine Model 850


4 NC controlled axes (Y – X – A - Z)

NC Controlled Axis Y

NC Controlled Axis X

NC Controlled Axis A

NC Controlled Axis Z

Machine Details:

Our Slotting Machine 4AC is the result of 30 years experience and research in design and development of industrial slotting machinery and equipment.

The CAMS slotting machine offers a number of important features:

  • robust construction: the main structure is manufactured in robust thickness sheet metal (heat treated and processed)
  • tables in high quality grade cast-iron (grade G30)
  • the turntable with a working diameter of 1000mm and central 350mm diameter central through hole
  • travel surfaces in cast-iron and PTFE with lubrication system designed to substantially reduce the stick/slip effect axes move on recirculating ball screw assemblies

CAMS has recently improved the head by incorporating in-house designed and developed technological innovations. The ram has been modified in size to offer greater robustness and is driven by a brushless motor transforming it into a machining axis. Gears in an enclosed oil bath connect the drive system to the motor.

Travel surfaces on the head are in cast-in and PTFE ground and scraped.

Machine electrics have been modified offering greater machining performance and flexibility as well as incorporating improved technology:

  • automatic longitudinal and horizontal pre-programmed and reversible slot machining and automatic rotation of turntable for any required slot depth and diameter.
  • tool lift obtained by alternating table movements
  • once the pre-programmed slot depth has been reached, in automatic the machine performs a number of pre-programmed finishing strokes and the ram stops in position Z- and the workpiece table in automatic returns to machining start cycle position.

The NC machine control offers a simple to use operator / machine interface. Machine data and parameters are displayed on a 10.4 “ touch screen display which is used for entering production and machining programmes. Programming is user friendly and easy to use.

Programmes with zero workpiece can be saved and stored and called up when required. Ram travel is adjusted using the keypad saving on downtimes and tooling times.

Electronic turntable with central through hole to floor with possibility of programming 1500 symmetrical and 999 asymmetrical divisions.

Possibility of machining specific trapezoidal, circular and linear slots.

Thanks to the possibility of having a fourth NC axis (axis Z), the operator can machine tapered slots without having to incline the head. This is achieved by interpolating axis Y with axis Z in automatic and programming the machining angle. This model can run in automatic two or more programmes in sequence.

The head tilts on a worm screw assembly 20° in both directions. Machining speed is programmed and varies form zero to a max of 32 m/min and thanks to the potentiometer incorporated into the control panel speed change is stepless.

The NC machining Z axis and corresponding servo-drive offer improved uniform machining compared to conventional slotting machines resulting in a reduction in consumption and wear in the cutting tool.

The software offers the following standard applications:

  • slot repeat: this function is for repeating slot machining without having to proceed with machine setup.
  • incremental tool lift: with this function enabled the tool is completely raised out of the slot when the ram returns and returns to zero workpiece position.
  • slot bottom finishing: in the event the slot is widened the operator has the possibility of milling the bottom of the slot to finish.
  • slot side finishing: this function is for widening the slot by milling and finishing the sides.

If required, it is possible to add and incorporate specific software functions and applications:

  • decreasing tool feed: this function allows the operator to automatically modify tool feed (machining) using two specific values initial and final tool feed. This function is enabled by entering the two tool feed values.
  • chamfering: once having machined the slot it is possible with this function to chamfer slot edges to 45° in automatic.
  • tangential slots: this function allows the operator to machine in automatic two or more UNI 7515-76 tangential slots of any width.

The machine is supplied with an electro-pump for the cooling system with a 130 l/min capacity and a metal housing containing the automatic pumps which can be programmed for managing the lubrication system used for greasing the ram, tables and head gears.

Protections on axis Y and oil scraper on axes X and Y.

Maintenance tools and machine instruction manual are supplied.

Safety protections.

Machine designed and manufactured to EC standards and directives.

Adjustable tool travel from 0 to (NC controlled axis Z)mm1500
1Distance Column/Tool holdermm1000
2Distance Table surface/Headmm1200
3Distance Table surface/earthmm1020
4Distance between tool-holder basis and table centre backwardsmm735
5Distance between tool-holder basis and table centre forwardsmm365
9Boring in Worktable centreØ mm350
10Measurements turntable (NC controlled axis A)Ø mm1000
11Max distance between head surface and ram surface (HPD)mm650
12Max distance between head surface and ram surface (LHP)mm850
Longitudinal Table travel (CN on axis Y)mm1100
Horizontal travel (CN on axis X)mm640
Max loading capacityKg3000
N. of variable stepless strokesN. strokes/min20
Ram drive motor (brushless)Kw
N × m
Overall machine dimensionsmmL = 3100
P = 3800
H = 4900
Close Details

Movement Comparison Table

Model 850 Longitudinal Travel Horizontal Travel Turntable Ram Axis
850 4AC NC Controlled Axis Y NC Controlled Axis X NC Controlled Axis A NC Controlled Axis Z

Technical Specifications

Our  NC 4-axis heavy-duty Slotting Machines are the result of ongoing improvement and technological development.

The CAMS model 850 incorporates a truly  innovative feature – NC control on ram axis Z.

By providing NC control on the machining axis offers the following production advantages and benefits:

  • drastic reduction in tooling times and machine setup;
  • improved machining performance, thanks to the Brushless motor and Servo-drive which ensure a constant  torque throughout machining from start to finish.
  • uniform machining  compared to traditional Slotting Machines (piston driven ram) resulting in  reduced  tool consumption and wear.

Machine Structure

Manufactured from electric arc welded sheet metal of robust thickness, adequately ribbed and heat treated for internal stress relieving.

Head and Ram

G30 quality grade cast-iron. Ram guides are induction tempered and ground. The travelways on the head are coated with an anti-friction material (PTFE), ground and scraped. The alternating ram motion is driven by a Brushless motor, reduction gear unit and crank assembly, over dimensioned to ensure and guarantee improved longevity for heavy-duty production requirements. Travel (stroke) is easily adjusted from the computer unit resulting in a significant reduction in tool zeroing times.


Automatic grease pumps interfaced with the computer lubricate travelways on the table, head and rack and pinion system. When the oil level drops below the minimum level machining stops automatically and an alarm prompt is activated.

Cooling System

Closed circuit system driven by a centrifugal electro-pump and a pull-out and removable swarf collection tray is positioned below the table for easy access.


Quality grade cast-iron with wide central through hole designed for machining long shafts.

Travel guides on the table and support are coated with an anti-friction material (PTFE), ground and scraped. Table rotation is driven by a worm screw-sprocket assembly (the worm screw is steel quality 18 NCM 5 hardened and ground and the sprocket is bronze quality B14) which incorporates a micrometric backlash recovery system. Maintenance free support guide thanks to the automatic greasing system.

Computer controlled compressed-air driven rotation lock system during machining. Compressed air operated locking system during machining.

Drive System

The drive system consists of a brushless motor keyed to a reduction gear unit resulting in an intermediate reduction on the central shaft (consisting of a pair of ground helical gears with backlash recovery) and rack and pinion system purposely dimensioned to support heavy-duty production cycles.


The table moves on an enclosed ground recirculating ball screw assembly.


Each axis is driven by a brushless motor and servo-drive with NC control. The NC control system allows easy machine programming including machining complex workpieces. Electrics and wiring conform to the stringent safety directives and standards.

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