DK42
on request
item description
"With the DK 42 A WEKA has extended the successful series of powerful diamond core drills up to 400 mm drilling diameter. A robust, powerful and solid three-phase motor with an appropriate high capacity gearsystem is packed in a stable aluminum case. Due to an optimized motorcooling by using water an excellent power weight is achieved.Further more the DK 42 A has the following special features.
3 - gear gearing unit - High efficiency gearing unit with economic speed adjustment to each bore diameter as well as a wide drilling range (diameter 70 - 400 mm).
Oil bath lubrication - Optimal gear lubrication for high efficiency and durability and less maintenance.
Safety clutch - Indispensable safety element. Protects operator as well as machine and tools from mechanical overstrain.
Three-Phase Motor - Extremely durable and low maintenance motor without brushes and collector. This motor has only a simple rotor instead of a coiled armature. It is silent. The speed drop at full poweris minimal.
Motor protection - The DK 42 A is protected by thermal switches integrated in the stator windings. Thus the motor is protected directly in case of overload, unsymmetrical voltage or phase failing.
Motor cooling - The DK 42 A´s motor is cooled by a patented water cooling. The cooling water flows controlled through the interspace between case sleeve and motorcase. Due to this intensive cooling power output and weight is improved considerably.
Metal casing - makes the DK 42 A - contrary to plastics cases - mechanically and thermally solid and stable. The DK 42 A is switched by an on-off button on the top of the machine via a conductor. For saving weight it is fitted in a cable case. By this device the motor is solidly and exactly switched and the required undervoltage trip is realized.
The DK 42 A corresponds to the water protection class IP 55 according to the European normative document EN 60 529, i.e. water cannot enter into the motor during proper use. Thus it is possible to drill upwards in a vertical position without taking any further precautions (overhead drilling).
Further more the DK 42 A corresponds to the European regulations, as well to the normative document EN 60 204-1. To enable the correct setting of the phase-sequence , the CEE 16 A mains plug is fitted with a phase inverter.
Technical Data:
Type DK 42 A
Nominal Power 3900W
Output Power 3000W
Load Speed 160/340/510 1/min
Length 540mm
Weight 19kg
Drilling Ø in Concrete approx. 70 - 400mm
Tool Fixture 1 1/4"" male
Water Protection Class EN 60 529 IP 55
Foot Fastening Standard 4 x M8 / groove 10 x 4,3
Type DK 42 AS
Nominal Power 3900W
Output Power 3000W
Load Speed 240/505/760 1/min
Length 540mm
Weight 19kg
Drilling Ø in Concrete approx. 50 - 300mm
Tool Fixture 1 1/4"" male
Water Protection Class EN 60 529 IP 55
Foot Fastening Standard 4 x M8 / groove 10 x 4,3
Type DK 42 AS
Nominal Power 3900W
Output Power 3000W
Load Speed 140/300/440 1/min
Length 540mm
Weight 19kg
Drilling Ø in Concrete approx. 90 - 450mm
Tool Fixture 1 1/4"" male
Water Protection Class EN 60 529 IP 55
Foot Fastening Standard 4 x M8 / groove 10 x 4,3"