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JUCENTER Brochure en

Product catalog summary

Overview
The JUCENTER CBN high-speed grinding machine by JUNKER is designed for high-production grinding of large series, combining multiple grinding processes in one machine. This setup enhances efficiency and precision by eliminating the need for separate machines for different grinding tasks.

Machine Features
The JUCENTER features two grinding stations:

Station 1: Circular grinding for main bearings using a grinding wheel set.
Station 2: Non-circular grinding for cam shapes or pendulum grinding for main bearings.

The machine can be customized for various shaft types, including camshafts, crankshafts, and gear shafts, allowing for optimal design based on workpiece requirements.

Technical Specifications

Center height: max. 170 mm
Swing diameter: max. 280 mm
Clamping length: max. 500 mm
Grinding length: max. 500 mm
Workpiece weight: max. 30 kg
Machine dimensions: 4,500 x 3,000 x 2,250 mm
Weight: Approx. 28,000 kg

Advantages
Commercial: Faster production, high process reliability, low investment and operating costs, reduced space and manpower requirements.
Technical: Controlled dimensional accuracy, automatic compensation for errors, high long-term accuracy, and uncoupled processes.

Applications

Camshaft Grinding: Plunge-cut grinding of bearings and versatile cam shape grinding.
Gear Shaft Grinding: High-speed grinding of plunge-cuts and faces, with multiple-bearing grinding of centric diameters.
Crankshaft Grinding: CBN multiple-bearing grinding of centric diameters and non-circular grinding of main bearings using pendulum grinding.

Equipment and Options
The machine includes a centralized control system with a standardized user interface, teleservice for remote support, and options for measuring equipment, air filters, coolant plants, and more. An integrated loading gantry minimizes downtime by efficiently handling blanks and finished parts.

Safety and Reliability
JUNKER provides a robust safety system to prevent fire and explosion risks associated with oil coolants. The machine features a vibration-reducing base, hydrostatic guides, and a dynamic balancing system for the grinding spindle.

Contact Information
JUNKER has a global presence with offices in Europe, Asia, and America, providing comprehensive support and services to its customers.

Catalog excerpts

PRODUCTIVE CBN HIGH-SPEED GRINDING

Open the catalog to page 1

HIGH-PRODUCTION GRINDING FOR LARGE SERIES MACHINE VERSIONS FOR NEARLY EVERY TYPE OF SHAFT Whether it is for camshafts, crankshafts or gear shafts: the JUCENTER machine concept with its two grinding stations sets new standards. Grinding operations can be combined however the customer wants in one JUCENTER by combining different wheelhead versions. This allows for an optimal, workpiece-dependant machine design. THE TECHNICAL CONCEPT JUCENTER allows for two grinding stations on one machine: •• Station 1 is generally for circular grinding with a grinding wheel (i.e. bearing seats on camshafts or...

Open the catalog to page 2

GRINDING CONCEPTS FOR CAM, CRANK OR GEAR SHAFTS GEAR SHAFT GRINDING At station 1, JUCENTER grinds plunge-cuts and faces in a highspeed gear shaft grinding process. With the help of a B-axis, the grinding spindle can be swiveled to grind plunge-cuts, as well as faces with very fast cycle times. In station 2, multiple-bearing grinding of all centric diameters takes places. CRANKSHAFT GRINDING In station 1, CBN multiple-bearing grinding of all centric diameters (bearings and pivot) takes places. Parallel to this, other grinding carriages in the next clamping set-up (station 2) carry out non-circular...

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JUNKER’S CENTRALIZED CNC SYSTEM CONCEPT VARIABLE EQUIPMENT AND INDIVIDUAL OPTIONS A COMPREHENSIVE OPEN SYSTEM INTEGRATED LOADING GANTRY The idea: central control technology for all components in the An integrated loading gantry reduces downtimes to an absolute grinding machine. All data and information is entered using the minimum: it picks the blank up from the conveyor, brings it to Erwin Junker Operator Panel. On the JUCENTER machines, this station 1 and removes the ground part, which is then brought makes up the user interface for a FANUC CNC-control system. to station 2. The transfer options...

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EUROPE Erwin Junker Maschinenfabrik GmbH JunkerstraBe 2 77787 Nordrach Germany [email protected] +49 7838 84-0 Erwin Junker Grinding Technology a.s. Plant Holice Pardubicka 332 534 01 Holice Czech Republic [email protected] +420 466 003-111 Erwin Junker Grinding Technology a.s. Russia Branch Office Prospekt Tolbukhina 17/65 150000 Yaroslavl Russian Federation [email protected] +7 4852 206121 JUNKER GROUP LTA Lufttechnik GmbH JunkerstraBe 2 77787 Nordrach Germany [email protected] +49 7838 84-245 www.lta-filter.com LTA Industrial Air Cleaning Systems s.r.o. Lidicka 66 252 68 Stredokluky Czech...

Open the catalog to page 5

JUCENTER Brochure en

JUCENTER Brochure en

Catalog excerpts

All Erwin Junker Maschinenfabrik GmbH catalogs and technical brochures

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