CHESTER ELECTRIC LOW HEADROOM HOISTS
We offer a complete line of worm gear driven, electric, low headroom trolley hoists. These hoists are equipped with case hardened load chain and are available in models to lift and move loads from 1 to 24 tons. Choices of plain push/pull, hand-geared or motorized trolley drives are available to meet a variety of applications.
FEATURES and BENEFITS:
OPTIONS:
VERSATILITY
The hoist design permits adaptation to a wide variety of applications. The unit can be built to suit most beams including wide flanges and patented track.
CHAIN CONTAINERS
Chain containers can be provided to collect the unused portion of the hoist lifting chain when the hook is in a raised position (optional, extra cost).
TROLLEY DRIVES
The hoist can be furnished with plain (push/pull), hand-geared or motorized trolley drives.
SPECIAL PAINT
The hoist can be provided with many finishes to meet customer requirements. Machine gray enamel is standard. Epoxy coating is available at extra cost.
SPECIAL CONTROL ENCLOSURES
Unless otherwise specified, NEMA 12 (industrial, dust-tight and drip-tight) enclosures will be supplied.
Optional enclosures are available for various non-hazardous locations, as well as certain hazardous locations.
EXPLOSION-PROOF UNITS
Units are available to meet customer specifications for equipment meeting Class I, Group D or Class II, Groups E, F or G criteria. Spark-resistant features are available when specified (optional, extra cost).
All units are designed in accordance with Chester Hoist’s interpretation of the N.E.C. Explosion-proof Components such as motor, control enclosure, limit switch, etc., carry the UL Label.
CIRCUITS AND CONTROL
All hoists and motorized trolleys are designed for use on 230/460 VAC, 3 phase, 60 Hz. Units for operation on 200 VAC, 575 VAC or 50 Hz systems are also available. Special-purpose hoist duty contactors are standard. NEMA-rated contactors are available at extra cost.
ALL TYPES OF LIMIT SWITCHES
These hoists are furnished with redundant upper and lower limit switches. Additional switches or special arrangements are available at extra cost.
LOAD-LIMITING SWITCHES
An electrical (current-limiting) load limiter is available on models with single speed only (optional, extra cost).
TROLLEY BRAKE
A trolley motor brake can be supplied at extra cost.
PUSH BUTTON STATIONS
Some available options include extra push buttons to provide such functions as trolley, crane and start-stop control, tandem hoist control, multiple stations.
INCHING CIRCUIT
An inching control allows precise settings down to a fraction of an inch each time the push button is pressed. This control is often used for accurate spotting of loads (optional, extra cost).
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