DF-50-150 Shear Cut Holder

The DF-50-150 shear cut top knife holder is a high speed pneumatic circular knife holder best utilized on light to medium paper and all non-woven materials. You can cut widths down to 50mm (1.97”) at web speeds of up to 1584 meter per minute (5200 feet per minute). The DF-50-150 is designed around the innovative and well proven Dienes zero clearance double shaft guidance system for vibration damping and maximizing top knife holder rigidity which results in cleaner slits and longer circular knife life. A micrometer adjustment device allows for precise depth control setting to ensure the highest slitting quality. This top knife holder also includes a pneumatically adjustable side force control for the precision ball bearing guided lower head in order to maximize knife life and edge cut quality. Features include choice of dovetail or linear bearing mounts, precision cant angle plates, 360 degree blade guard, quick change lower circular knife head, optional Easy-Set tab, optional oil wick, 150mm (5.91”) diameter circular blade and a TWO YEAR WARRANTY! When your operation requirements demand slitting know-how, high speed, and long life – call Dienes.

Download the DF-50-150 Shear Cut Holder Parts List
Drawing subject to change and may not represent the most up-to-date version.


  • 360° Guard – for operator safety
  • Oil Wicks – for blade lubrication
  • Vacuum Guard – to minimize slitting dust
  • ES-Tab – for bottom knife alignment on Center Linear Bearing mounting system
  • Spanner Wrench – for PQG holders only
  • Knife removal guards
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Additional information

Dienes Part #

Drawing Number

Minimum Slit Width Inches

Minimum Slit Width Millimeters

Maximum Web Speed ft/min

Maximum Web Speed m/min


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  Item # Item Name Dienes Part #
P3135-0001 DF-50-150 Dovetail Mount Shear Cut Holder P3135-0001
P3135-0002 DF-50-150 Linear Bearing Mount Shear Cut Holder P3135-0002
  Item # Item Name Dienes Part #
1 Holder Body 245C130529010
2 Pressure Cylinder 245C080526010
3 Piston 245C070527010
4 Cylinder Cover 245C080525010
5 Screw 234B030205010
6 Guide Shaft 245C020534010
7 Retaining Sleeve 021637
8 Nut 245C030530010
9 Protective Cap 245C050533010
10 Nose Washer 234E020061010
11 Gasket 245C080528010
12 Bearing Bushing 021644
13 Bearing Bushing 021645
14 Brass Bearing Cage 650773
15 Brass Bearing Cage 021647
16 Spring 650775
17 Socket Head Cap Screw 0D00912006012
18 Seal 650776
19 Socket Head Cap Screw 617224
20 Socket Head Cap Screw 0D0691201006
21 Gasket 650777
22 Retaining Ring 022129
23 Disc 234E030036030
24 O-Ring 650779
25 Threaded Pin 234B020204010
26 Dirt Wiper 650780
27 Guide Shaft Assembly N/A
28 Lower Guard Housing 245D070A01001
29 Knife Carrier 245C100535020
30 Bushing 245C060537010
31 Axle 245C030546030
32 Intermediate Ring 245C070539030
33 Inner Cover 245C070541010
34 Outer Cover 245C070540010
35 Intermediate Plate 245C030548010
36 Stepped Intermediate Plate 245C040547040
37 Spacer 245C070545020
38 Diaphragm (2 Pieces) 022137
39 Circular Spring 263C070034010
40 Washer 234E000031030
41 Retaining Ring 021525
42 Retaining Ring 22070
43 Socket Head Countersunk Screw 651240
44 Grooved Pin 651241
45 Brass Bearing Cage 651242
46 Ball Bearing 651254
47 Socket Head Countersunk Screw 614104
48 Low Head Socket Head Cap Screw 651250
49 Gasket 651243
50 Socket Cap Screw 613558
51 Intermediate Plate 245C130703010
52 Ring Nut 021638
411646 Knife Head Assembly 411646
22335 Replacement Circular Knife for DF-50-150, 52100 Material 22335
021563 Replacement Circular Knife for DF-50-150, D2 Material 021563
02134-09 Air Hose Assembly (with Quick Disconnect) for DF-50-150 02134-09
021998 Seal Kit for DF-50-150 021998

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