BSM 80 / 100 Drilling and boring are very important machining Operations by chip removal. Due to varying shapes and angles of cutting edges, the drill which became a high-duty tool is adapted to a wide ränge of materials and production processes. High cutting Performance and long tool life of the cutting edge including precise and clean bore holes depend on an accurate bit and on precise cutting edges. KLINGEL-Drill Grinding Machines Models BSM 80 / BSM 100 fully meet these requirements. Drill grinding machines: Type BSM 80 (ø 5 - 80 mm) and Type BSM 100 (ø 10 - 100 mm).

Construction The basic machine of both models is composed of the machine frame, the wheel carriage with the grinding spindle and the tool carrier with the clamping chuck. The strongly dimensioned machine frame offers sufficient room for the electric control and the cooling plant. The wheel carriage is mounted in longitudinal and transverse direction on roller guideways which are free from backlash. Adjustment to both directions is by means of handwheels with scale reading. The grinding spindle supported on rolling bearings is driven, free from Vibration, by a built-in motor. The grinding wheel is mounted on a clamping flange with balancing snap ring groove. Tapered shaft ends of the grinding wheel spindle allow for fast change of grinding wheels.

Provision is made for an infinitely variable adjustment of the tool carrier with respect to the various angles of the point.
The operational movements - drive of the clamping chuck, lateral oscillating movement and infinitely variable axial stroke for the free cut - are positively connected with each other. They are driven by a pole changing motor with two revolution speeds for both clockwise and anticlockwise Operation. The Standard cam allows the grinding of right hand cutting drills with two and three cutting edges.
The clamping chuck of model BSM 80 is equipped with a Single set of clamping jaws for a chucking capacity ranging from 10 to 80 mm. Extra long clamping jaws ensure the centering in the shank of the drill.
The Standard accessories of model BSM 100 include two sets of clamping jaws for a chucking capacity ranging from 10 to 70 and from 50 to 100 mm. Drills with tapered shaft are provided for with centering sleeves MK2 to MK6.
Contrary to normal Standard machines, BSM 80 and BSM 100 are built in accordance with individual requirements and consequently may contrast with them. Customers may adapt the drill grinding machines to their special needs using the following devices and attachments.
The cooling plant is housed in the machine base. Its tank holds approx. 70 litres. For a particularly heavy accumulation of sediment we recommend a seperator with a capacity of 250 litres.
Thinning out is effected with the second grinding wheel immediately after the grinding of the point without unclamping the drill.
The oscillating device moves the wheel carriage longitudinally with respect to the grinding wheel shaft ensuring the uniform wear of the entire wheel width.
Because of the automatic advance with infinitely variable speed and preselection counter, the grinding Operations are performed automatically.
Dressing of the circumference and wheel surface is possible with the dressing device for the main grinding wheel with longitudinal and transversal adjustment of the spindle.
The positioning device moves the clamping chuck automatically to the correct position for the clamping of the tool.
Heavy drills of excessive length require a outrigger-support for long drills which is part of the Standard accessories for model BSM 100.

Technical Specifications

Tool mounting in chuck BSM 80 5 - 80 mm BSM 100 10 - 100 mm Tool length unlimited Automatic grinding with Cutting edges 2 - 3 (4 - 6) Cutting direction clockwise and anticlockwise Tool revolution speeds 8-12-15-23 /min. Advance per minute Infinitely variable ca. 0,4 - 4 mm Main grinding wheel ø 300x70x127 mm Revolution speed 1420 min. power 2,2 kW ponting wheel ø 150 mm revolution speed 2830 /min. power 0,55 kW coolant pump 0,065 kW connected load approx 3,2 kW total weight 1100 kg

Technical data are subject to change.

Grinding Methods

	Core drills with 3 or 4 cutting edges undergo continiously a finish grinding process. Free grinding is realised by an infinitely adjustable axial motion.
	Countersinks The grinding of core drills with 2,3,4 or 6 cutting edges is performed at an extremely small clearance angle (infinitely variable adjustment). Additional attachments are provided to be put on for tools with one and with five cutting edges.
	Screw taps With 2,4, or 6 cutting edges are first ground with the tool rotation. Only by straight fluted screw taps.
	Drills / Countersinks with pilot It is possible to regrind drills and countersinks with pilots. You also can grind the pilot by a first step and the second step is to adjust the required angle and then grind this.

The grinding methods shown on these illustrations may be performed exactly by using the corresponding accessories.