SPM – Special Purpose Spindles
99Pages

Jena-Tec Inc. 333A Bell Park Drive Woodstock GA USA 30188 Telephone: 1 (770) 926 6705 Fax 1 (770) 926 6724 Toll Free: 1-888-453-6283 E.mail: sales@jenatecusa.com Jena Rotary Technology Limited Willow Drive Sherwood Park Annesley Nottinghamshire NG15 0DP England Tel: ++44(0)1623 726010 Fax: ++44(0)1623 726018 E.mail: info@jena-tec.co.uk

Jena-Tec Spindles - page 2 SPINDLES INDEX HIGH FREQUENCY SPINDLES HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING page 5 STANDARD HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING page 6 HIGH FREQUENCY SPINDLES - WOODWORKING page 7 MOTORISED SPINDLES STANDARD RANGE - SURFACE / FORM / BROACH GRINDING AND SURFACE GRINDING page 14-17 SPECIAL PURPOSE GRINDING page 18 VERTICAL ROTARY GRINDING page 19 HEAVY DUTY MILLING page 20-21 VERTICAL BORING MACHINES page 22-23 MOTORISED PLANETARY SPINDLES - HORIZONTAL BORING MACHINES page 24 SPINDLES - BORING BORING SPINDLES page 26-27 BELT...

Jena-Tec Spindles - page Manufactured to the highest engineering standards within the new Jena rotary technology centre B&T Spindles are suited to a wide range of applications, including machines for BORING, TURNING, GRINDING, MILLING and DRILLING etc. This PDF catalogue provides details on the broad range of B&T spindle solutions - customised spindles can be produced for most special purpose applications and machines not listed. ® Incorporating: BONEHAM PRECISION SPINDLES BONEHAM & TURNER SPINDLES

Jena-Tec Spindles - page HIGH FREQUENCY SPINDLES - OVERVIEW VOLTAGE AND SPEED High Frequency Spindles use the rule that the speed of an AC Induction motor is proportional to the frequency of the electric supply. So, on a 2-pole motor, a 50Hz supply will give a synchronous speed of 3000 rpm and increasing the supply frequency to 100Hz will give a synchronous speed of 6000 rpm. The variation in frequency is most commonly obtained from a Static Frequency Inverter which also allows control of the voltage of the supply to the motor. The voltage/frequency ratio together with the design of the...

Jena-Tec Spindles - page HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING All spindles are specifically constructed to match requirements and many options and accessories are available. They are generally fitted with permanent magnet (cold rotor) water cooled brushless spindle servomotors giving compact design with very high torque and wide speed range for rated power output as well as positioning capability for tool changing. Manual, or in most cases, power drawbars are available to suit SK30, SK40, or SK50 size tool holders. For higher speed HSK tapers to DIN69893 in sizes 32, 40,...

Jena-Tec Spindles - page STANDARD HIGH FREQUENCY SPINDLES - MILLING / DRILLING / ROUTING AUTO TOOL CHANGE Typical Power Characteristics Example HF833 S1

Jena-Tec Spindles - page HIGH FREQUENCY SPINDLES - WOODWORKING Spindle type (r/min) KW

Jena-Tec Spindles - page OIL/AIR LUBRICATION Electrically controlled Oil-air pump set. Application: Min. oil lubrication. Continuous bearing lubrication for high-speed spindles. Compact construction. Continuous oil flow. Technical data: Air pressure (inlet): 2.5 - 6.0 (bars) Tank volume: 1.5(l) Temperature range: 0-50°C

Jena-Tec Spindles - page 9 Jena Rotary Technology supply refrigerated process coolers for dispersal of heat from the motor & bearings. These coolers use FCKW free refrigerant. Coolant temperature is maintained at 20721 °C. These units are acceptable in environments where temperatures vary from +107+40°C.

Jena-Tec Spindles - page SPINDLE SERVICE MODULE Included:- Inverter, Chiller, Air supply for Spindle nose sealing. . Extra (to be specified):- Oil/Air Lubrication. Power Unit for Autochange Drawbar. EMERGENCY STOP Basic Sizes Chiller litre/min

Jena-Tec Spindles - page HIGH FREQUENCY SPINDLE / SPINDLE SERVICES - MILLING Typical arrangement Electric Motor Invertor Power Supply e Thermister Trip Circuit Thermistor in Motor Winding Air Purge (Optional) Air Supply Lubricator Oil/Air Cooling Water

Jena-Tec Spindles - page MOTORISED SPINDLES - OVERVIEW This type of spindle has a synchronous speed motor built direct onto the spindle shaft thus forming a complete self contained unit which is carefully balanced to remove all traces of vibration. All driving complications are eliminated and the unit can be made very compact. The spindles are fitted with super precision pre-loaded angular contact ball bearings. This type of spindle is put into many uses including, surface, slideway, cutter, broach and form grinding etc. Spindles can be supplied to run horizontally, vertically or at any...

Jena-Tec Spindles - page MOTORISED SPINDLES STANDARD RANGE - Surface Grinding, Form Grinding, Broach Grinding and other Applications L2 INCH RANGE Reference Power Output Power Output

Jena-Tec Spindles - page MOTORISED SPINDLES For Surface Grinding This motorised spindle incorporates a two speed motor, or alternatively single speed motors as shown below. Voltages can be supplied to order. Spindles have “Sealed” for life lubrication. Grinding Wheel adaptors to suit cup wheels 6"-8" diameter for 3,000 r.p.m. spindles, 12"-14" diameter for 1,500 r.p.m. spindles and 16"-18" for 1,000 r.p.m. spindles. Rear end of spindle shaft is threaded to suit Rotary Coolant Union. Standard rotation anti-clockwise viewing on grinding wheel end. 2-1/2" DIA HOLES FOR GUARD MOUNTING Dual...

Jena-Tec Spindles - page MOTORISED SPINDLES For Surface Grinding These spindles have circular Vee base, which allows for the clamping of the unit by means of a split ring. Mounting bases will be supplied to order. Voltages supplied to order. Spindles have “Sealed” for life lubrication. Grinding Wheel adaptors to suit cup wheels 6"-8" diameter for 3,000 r.p.m. spindles and 12"-14" diameter for 1,500 r.p.m. spindles will be supplied to order. Rear end of spindle shaft is threaded to suit Rotary Coolant Union. Standard rotation anti-clockwise viewing on grinding wheel end. Dual Output