300 EBTK, 310 EBTK

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Universal machine concept
Automatic unbalance measurement
Precision positioning during correction
Microprocessor-controlled measuring unit

Sequence of operations

Load a crankshaft into the measuring station, manually or by lifting device
Close the protective shroud. Automatic measuring run and display measured values.
Open the protective shroud and move the crankshaft to the correction stand.
Insert the crankshaft into positioning device and couple with angleencoder for optional indexing aid or with locking-pin device
Drill correction holes one after another corresponding to the display
Return the crankshaft to the measuring station. Automatic check run and display of residual unbalance.
Remove the crankshaft. If the crankshaft is still out of tolerance proceed with a second step.

Design

Two-station machine with separate measuring and correction stations. Measuring station with coupling-free roller-drive or hook drive for asymmetrical crankshafts.
Correction station with positioning equipment and electro-mechanical drilling equipment.

Range of application

Measurement and correction of unbalance in machined passengervehicle and light commercial- vehicle crankshafts. Use in small and mid-volume series production or as a repair balancing machine.
Unbalance correction by drilling into the counterweights in one or more steps at a separate drill stand (correction station). Manual handling of the work-pieces between measuring and drilling stations.

Technical data

Technical data at a glance		300 EBTK	310 EBTK
Measuring unit		CAB 950	CAB 950
Passenger-vehicle crankshafts		•	•
Commercial-vehicle crankshafts		•	•
Balancing unit with roller-drive		•
Balancing unit with hook-drive			•
Manual loading and unloading		•	•
Over-lapping cycle		•	•
Drilling unit with controlled depth		•	•
Rotor
Weight, max. ¹⁾	[kg]	6 - 35	6 - 35
Total length	[mm]	280 - 790	280 - 790
Journal distance, max.	[mm]	650	650
Main journal diameter	[mm]	40 - 75	40 - 80
Outside diameter, max	[mm]	200	200
Machine
Width A ⁴⁾	[mm]	3800	3800
Depth B ⁴⁾	[mm]	1300	1300
Height C ⁴⁾	[mm]	2000	2000
Balancing speed	[min -1]	450 - 600	450 - 600
Measurement uncertainty ²⁾	[gmm]	5 - 15	10 - 20
Cycle time ³⁾	[s]	45 - 60	45 - 60
Drill capacity in St 60	[mm]	28	28
Power consumption	[kVA]	6,5	6,5

Basic machine	Order No.	R0290100.01	R0290200.01
Options
Chip extractor	Order No.	R0290103.01	R0290103.01
Indexing aid	Order No.	R0290104.01	R0290104.01

1) Without bob weights, with manual loading max. 15 kg
2) Acc. to DIN 1319, 95% probability, work-piece dependent (without unloading)
3) Dependent on crankshaft design, correction scheme and initial unbalance
4) Data non-binding, dependent on the respective equipment