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MP 20.2

MP 20.2
Internal height: 20 mm
Internal widths: 15 - 50 mm
Outside widths: 26 - 61 mm
Radii: 38 - 125 mm
Pitch: 35 mm
Links Per Meter: 29
Interior/exterior widths
Interior width (A) Interior height (B) Exterior width (D) Exterior height (C)
15 mm 20 mm 26 mm 25 mm
25 mm 20 mm 36 mm 25 mm
38 mm 20 mm 49 mm 25 mm
50 mm 20 mm 61 mm 25 mm
Radius (R)
38 mm
48 mm
75 mm
100 mm
125 mm
Chain bracket with integrated strain relief
Radii with medium bias (R) for all applications
Frame bridges, folding on one side

Material characteristics standard (PA/black)

Service temperature: -30 - 120 ° C
Gliding friction factor: 0.30
Static friction factor: 0.45
Fire classification: UL94 HB

Other information on request

Technical Specifications

Travel distance, gliding Lg: Not Recommended
Travel distance, self-supporting Lf: See Diagram
Travel distance, vertical, hanging Lvh: 8 m
Travel distance, vertical, upright Lvs: 3 m
Rotated 90°, unsupported L90f: 0.50 m
Speed, gliding Vg: 0 m /s
Speed, unsupported Vf: 10 m /s
Acceleration, gliding ag: 0 m /s²
Acceleration, unsupported af: 10 m /s²

Self-Supporting Length

load diagram7

Ideal installation situation for high stresses at the limit of the max. travel parameters. In this range the chain upper run is still biased, straight or has a max. sag of 10 – 50 mm depending on the type of chain.

Satisfactory installation position for many applications working in the lower to middle range of the max. travel parameters. Depending on the chain type, the sag of the chain upper run is > 10 – 50 mm but less than the max. sag. If the sag is greater than FLb, the application is critical and should be avoided. Please choose a more stable Murrplastik cable drag chain.

Determining the Chain Length


L = Travel distance
R = Radius
T = Pitch
E =

Length = L/2 + π × R + 2 × T + E

1 m chain = 29 x 35 mm links The fixed point of the cable drag chain should be connected in the middle of the travel distance. This arrangement gives the shortest connection between the fixed point and the moving consumer and thus the most efficient chain length.

Chain Weight

0.195 kg/m
Chain bracket

Chain bracket

The chain bracket is a fully plastic part. The bracket is precisely adjusted to the respective chain width and only needs to be snapped in at the chain link. Please order one male and one female end bracket for each chain. The brackets should be fastened with M5 screws. The cables or conduits may be fastened with cable ties on the integrated strain relief of the chain bracket.

Order Number Type Pack qty.
020200005000 KA 20 015 Female end 1
020200005100 KA 20 015 Male end 1
020200005200 KA 20 025 Female end 1
020200005300 KA 20 025 Male end 1
020200005400 KA 20 038 Female end 1
020200005500 KA 20 038 Male end 1
Type A E F G H Ø O A+11.0
KA 20 038 15 mm 20 mm 19 mm 16.5 mm 5.5 mm A+11.0
Type A F G H Ø O A+11.0
KA 20 015 15 mm 19 mm 16.5 mm 5.5 mm A+11.0
KA 20 025 25 mm 19 mm 16.5 mm 5.5 mm A+11.0

TR 20 separator

TR 20 sep

We recommend that separators be used if multiple round cables with different diameters are to be installed.

Type Order No. Designation Version TI TA H H1 H2
TR 20 020000009000 Separator Moveable 1.6 mm 8 mm 2.5 mm 10 mm 10 mm

Guide channel systems for cable drag chains serve as trays for short travel distances and at the same time as guides for long travel distances. If no guide channel is used it is possible that the chain links may lay and move incorrectly. Especially for large bend radii as the side guidance does not exist. In most applications the cables/conduits enter the chain at a position central to the travel. This gives the shortest length of chain. In this case the chain is about half as long as the travel distance. If the chain is moved to the left (see illustration below) it simply rolls in the channel. If it is moved to the right, then it stacks on top of itself once the unsupported length has been exceeded. If the movement is further made into direction B the glide rail adjusts the difference in height and guarantees the minimum possible friction. This ensures the optimum free and correct running of the cable drag chain.


MP20 assembly


MP20 disassembly

Should the CAD format you desire not be listed, please contact our support team.

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