 Thruster Drum Brake with internal springs shown with R.S.B. drum
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 SDLX710 Thruster Drum Brakes Ladle Crane for Steel Industry
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Spring Set 3 Phase Thruster Released Drum Brakes
Industry Type
- General Industrial Code, Prefix: GDL
- Steel Industry Standard, Prefix: SDL
- High Integrity Nuclear, Prefix: HDL
Dimensions
- Metric as DIN standard code: DL
- Imperial as A.I.S.E. standard code: SMLA
- Also non-standard drum sizes and base fixings
Construction
- Fabricated steel mechanism
- Major pivots non-ferrous bushed
- All pins ground stainless steel
- Friction linings high temperature non asbestos
Thrusters
- Standard Eltma Elhy EB series IP56 enclosed
Special Options -Self adjusting mechanism
- Mechanical release lever
- Limit switches to monitor release/ set or wear
- Hydraulic override by remote pedal
- Electronic modulated torque by remote pedal
- Reverse brake mechanism thruster to apply
- Soft stop, or soft set
- Special materials and finishes as required,
including high integrity requirements.
Applications
- Mechanical handling equipment, cranes, winches,
stacker reclaimers, ski lifts, and conveyers etc.
Engineering
- Design and selection assistance available
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 SMLA19-EJ125/60 250VDC Thruster Drum Brakes service duty brakes Foot Pedal Modulated if required
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Brake Selection
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The brake size must be chosen to give required braking torque and to dissipate the energy during stopping
without over heating the drum. Brake torque is often related to drive motor torque by an arbitrary service
factor typically 75% -100% full load torque for crane travel and similar inertial loads which tend to be self
stopping or 150% -200% for crane hoists and other overhauling loads. If a precise stop time or distance is
specified, then the brake torque must be calculated.
Motor FL torque is given by:
- [(kW x 9550) / rpm]Nm or [(HP x 5250) / rpm]Lbft
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DIN Brake Model Data
BRAKE MODEL |
DRUM DIA. "D" |
THRUSTER MODEL RANGE |
TORQUE RANGE |
WEIGHT |
| |
mm |
|
Nm |
kg |
| GDL160 |
160 |
EB120-EB220 |
79 to 131
|
29 |
| GDL200 |
200 |
EB120-EB300 |
127 to 344
|
33 |
| GDL250 |
250 |
EB220-EB50 |
285 to 680 |
39 |
| GDL315 |
315 |
EB300-EB80 |
505 to 1235 |
80 |
| GDL400 |
400 |
EB50-EB125 |
1080 to 2860 |
112 |
| GDL500 |
500 |
EB80-EB150 |
3380 to 6000 |
181 |
| GDL630 |
630 |
EB125-EB250 |
3700 to 7150 |
281 |
| GDL710 |
710 |
EB250-EB3000 |
7750 to 10700 |
388 |
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AISE Brake Model Data
BRAKE MODEL |
DRUM DIA. "D" |
THRUSTER MODEL RANGE |
TORQUE RANGE |
WEIGHT |
| |
in |
|
Lbft |
Lb |
| SMLA6 |
6 |
EB120-EB220 |
58 to 96
|
64 |
| SMLA8 |
8 |
EB120-EB300 |
94 to 254
|
73 |
| SMLA10 |
10 |
EB220-EB50 |
210 to 500 |
86 |
| SMLA13 |
13 |
EB300-EB80 |
375 to 911 |
176 |
| SMLA16 |
16 |
EB50-EB125 |
797 to 2110 |
246 |
| SMLA19 |
19 |
EB80-EB150 |
2494 to 4428 |
398 |
| SMLA23 |
23 |
EB125-EB250 |
2730 to 5276 |
618 |
| SMLA30 |
30 |
EB250-EB3000 |
6140 to 8475 |
880 |
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 AISE Standard SMLA Thruster Drum Brakes
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Thruster data
- Standard EB Series:
- Fluid; transformer oil BS148 typical Shell diala 'B'
- Approximate operating times: brake release 0.1 seconds
- Brake set 0.25 -0.5 seconds depending on size and brake spring load.
Optional features
- High temperature viton seals.
- Internal preset hydraulic delay valve(s)
- Dust protecting hood
- Internal return c-spring
- Converter unit to operate from DC supply 220-440V
- Explosion proof design EExd Group I and II
Alternative Thrusters
- Eldro/Elhy/Elco to din 15430.
- DC Custom
- Thrusters Also type KT/TKF can be supplied.
- Flame proof available
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 HDLX Explosion Proof Thruster Drum Brakes
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