R&M STAGEMAKER SM1, Technical Manual

Page: 44 / 53

R&M Materials Handling, Inc STAGEMAKER
®
Concert Hoist
Springfield, Ohio USA Technical Guide
 :
800 955-9967 June 2009
www.rmhoist.com
RM-STGMKR-TG-2002-6-ENG.doc
44
®
10 Load Chain, Load Sprocket and Chain Guide
The load sprocket (or load wheel) has five (eight with a 45° load wheel on SM2, six on SM16) precision-
machined chain pockets.
The chain guide is a standard feature and it helps guide and hold the load chain in the pockets of the load
wheel for safe operation and to prevent jamming.
The Chainflux chain guide replaces the standard chain guide
on the SM5 or SM10 hoist models equipped for the inverted position only.
This high strength Chainflux chain guide provides a remarkably low friction
coefficient, facilitating passage of the chain on ejection. Its special
shape provides a much more fluid horizontal flow of the chain as it
comes off the load wheel. It helps to prevent chain jamming at the
upper part of the hoist as the chain is ejected as well as guiding the
chain into the chain bag and reduces contact area between the hoist
body and chain.
Load Chain Specifications
Load chain ø x pitch (d x t) mm
3.1 x 9.3 4 x 12 4.8 x 12.5
Hoist model SM1 SM2 SM5
Class
DAT T DAT
Grade HE80S or HE G80 RT H80S or HE G80
Min. Breaking strain (N/mm2)
800 800 800
Surface Hardness:
550 – 700 HV 300 – 400 HV 10 550 – 700 HV
Standards
DIN 5684-8 EN 818-7 DIN 5684-8
Cross-section area (mm2)
15.1 25.1 36.2
Safe load limit of chain (kg)
125 250 500
Min. Breaking force (kN)
11.2 EN 818-720.1 29
Min. total elongation 10% 10% 10%
Dimension over 11 links (mm) 102.3 134.64 137.5
(+0.35, -0.20)
Dimension over 11 links (in.) 4.028 5.30 5.413
(+0.014, -0.008)
Weight per meter (kg/m)
0.22 0.35 0.54
Weight per foot (lb/ft)
0.148 0.235 0.363
Corrosion protection Black coated Black coated Black coated
Load chain ø x pitch (d x t) mm
6.8 x 17.8 9.0 x 27 11.3 x 31
Hoist model
SM10 SM16 SM20/SM25
Class DAT DAT DAT
Grade H80S or HE G80 H80D or HE G80 H80D or HE G80
Min. Breaking strain (N/mm2)
800 800 800
Surface Hardness: 550 – 700 HV 550 – 700 HV 550 – 700 HV
Standards
DIN 5684-8 DIN 5684-8 DIN 5684-8
Cross-section area (mm2)
72.6 127.2 200.6
Safe load limit of chain (kg) 1000 1600 2500
Min. Breaking force (kN)
58.1 93.0 160
Min. total elongation
10% 10% 10%
Dimension over 11 links (mm) 195.8
(+1.05, -0.25)
297
(+0.75, -0.40)
341
(+1.1, -0.5)
Dimension over 11 links (in.) 7.709
(+0.041, -0.010)
11.693
(+0.030, -0.016)
13.425
(+0.043, -0.020)
Weight per meter (kg/m)
1.08 1.80 2.85
Weight per foot (lb/ft) 0.726 1.21 1.915
Corrosion protection
Black coated Electro-zinc Electro-zinc