Precision clamping chucks

Stainless hand-operated chucks

All chucks of this type are made of stainless steel. The chucks are built to be flat and light. A large adjustment range, good concentricity (<0.02mm) and high repetitive clamping accuracy (<0,005mm) guarantee excellent quality in production. Opening and cleaning of EDM residue and other dirt is done quick and simple. The hardened standard clamping jaws are reversible. The adjustment of the chuck is done by turning the clamping ring. Thus a fast clamping can be done by hand - without the need for any additional tools.

Brochure Koch chucks [PDF | 8.7 MB]

Application example erosive turning

overview types

DBF34, DBF55, DBF63, DBF100, DBF140x58, DBF160

DBF34 - Stainless hand-operated chuck

outer dimensions
d₁	35
d₂	12
x₁	18,5

clamping range
i₁	11 - 23
i₂	-
i₃	-
a₁	1 - 14
a₂	20 - 32
a₃	-
a₄	-
s	4,5

other information
weight	85g
jaws	hardened, reversible, ground
drawing
3D-CAD-data

DBF55 - Stainless hand-operated chuck

outer dimensions
d₁	55,5
d₂	11
x₁	29,8

clamping range
i₁	13 - 28
i₂	23 - 28
i₃	33 - 48
a₁	1 - 16
a₂	12 - 24
a₃	22 - 34
a₄	32 - 44
s	3

other information
weight	0,28 kg
jaws	hardened, reversible, ground
drawing
3D-CAD-data

DBF63 - Stainless hand-operated chuck

outer dimensions
d₁	69,5
d₂	8,2
x₁	29,5

clamping range
i₁	12 - 32
i₂	24 - 44
i₃	36 - 56
a₁	1 - 20
a₂	15,4 - 32
a₃	27,4 - 44
a₄	39,4 - 56
s	3

other information
weight	0,38 kg
jaws	hardened, ground, reversible
drawing
3D-CAD-data

DBF100 - Stainless hand-operated chuck

outer dimensions
d₁	119
d₂	15,2
x₁	42,7

clamping range
i₁	20 - 60
i₂	40 - 80
i₃	60 - 100
a₁	1 - 40
a₂	28 - 60
a₃	48 - 80
a₄	68 - 100
s	4,5

other information
weight	1,6 kg
jaws	hardened, ground, reversible
drawing
3D-CAD-data

DBF140 - Stainless hand-operated chuck

outer dimensions
d₁	138
d₂	58
x₁	43,6

clamping range
i₁	24 - 68
i₂	54 - 98
i₃	84 - 128
a₁	1 - 58
a₂	32 - 84
a₃	62 - 114
a₄	92 - 144
s	4,5

other information
weight	2,2 kg
jaws	hardened, ground, reversible
drawing
3D-CAD-data

DBF160 - Stainless hand-operated chuck

outer dimensions
d₁	159
d₂	23
x₁	56,8

clamping range
i₁	24 - 68
i₂	52 - 110
i₃	84 - 128
a₁	1 - 56
a₂	30 - 80
a₃	58 - 108
a₄	86 - 136
s	7

other information
weight	5 kg
jaws	hardened, ground, reversible
drawing
3D-CAD-data

Koch stainless hand-operated chucks are suitable for a wide range of applications

metrology

measurement of gearbox shafts
measurement of spindles
testing of needles and cannulas

electrical discharge machining

wire erosion with rotating spindle
usage as work piece holder in dividing machines

underwater applications

ultrasonic testing
ultrasound cleaning

laser applications

laser marking
laser welding

All Stainless hand-operated chucks are suitable for usage in vacuum and underwater. They can be delivered on demand with special grease for this applications.