Crankshafts

Balancing Machine for Crankshafts Type KHK21-B1 and KHK12-B

Type KHK balancing machines are designed for the balancing of in-line and V-crankshafts in several correction planes in one or more processing steps.

Features
- Automatic balancing of 3 cylinder in-line to 12 cylinder V-crankshafts
- Drill spindle prepared for coolant and Minimum Quantity Lubrication (MQL)
- Optional automatic drill changer
- Machine design with integrated switch cabinet
- Standard model completely enclosed with front loading door and loading hatch
Applications
- Balancing of car and truck crankshafts for in-line 3 cylinder to V12 cylinder engines
- Can be used as a single machine with manual loading as well as with automatic loading by loading gantry
- Unbalance compensation by drilling with one and two spindle drilling unit.

Technical Specifications
		KHK21-B1	KHK12-B1
Rotor
Weight	kg	6-50	30-160
Overall length	mm	300-600	350-1250
Main bearing diameter	mm	30-80	65-125
Journal distance, min.	mm	77	85
Fly circle radius crankpin, max.	mm	100	160
Compensation		Drilling with MQL	Drilling with MQL
Compensation radius	mm	100	60-160

Machine
Measuring planes		2	2
Measuring system		displacement measuring w/ maintenance-free sensors	displacement measuring w/ maintenance-free sensors
Cycle time min.		cycle time chart for each shaft will be supplied	cycle time chart for each shaft will be supplied
Unbalance reduction ratio	%	95	95
Measuring drive		slide bearing shells with hook or pin drive	slide bearing shells with hook or pin drive

Machine data
Width x depth x height	mm	2600 x 2100 x 2200	4300 x 2600 x 2500
Balancing speed	rpm	200-650	200-650
Measuring uncertainty¹⁾	gmm/kg	1	1
¹⁾Depending on workpiece