Model 820 38" Hydraulic Oceanographic Winch

Specifications

Drum Dimensions: 38" diameter flanges, 20" diameter drum core, 34.5" between flanges

Drum Capacity: The following capacities allow for 2" of free flange above the top layer of wire

Drum Rating: at 36 US gpm at 2,500 psi

Drive: The winch is driven by a radial piston type hydraulic motor through a single stage, spur gear reduction.

Frame & drum: Fabricated steel. All mild steel parts are sand blasted and coated with an epoxy primer. The complete winch is finished with one coat marine grade epoxy.

Gears: All gears are steel with machine cut teeth and are manufactured to AGMA Class 6 standards for industrial gears.

Bearings: The drum and drive shafts are supported on totally enclosed ball type bearings that are held in cast iron housings. All other shafts are supported on heavy wall bronze bearings that are held in fabricated steel housings. Provision is made for the lubrication of all bearings.

Clutch: The drum is connected to the drive by a manually operated jaw type clutch. When the clutch is disengaged and the brake is released, the drum will free wheel.

Controls: The winch is controlled by a single lever, three position valve that is mounted and pre-piped to the hydraulic motor. The further the control lever is moved in either direction from the neutral position, the greater will be the line speed. When released the lever will spring return to a central neutral position. This valve may be actuated by a remote electronic joystick that will give the same control functions.

A hydraulic counterbalance valve is located in the lines between the control valve and the motor. This valve will automatically hold the load when the main control valve is in the neutral position and will give controlled payout of the line under load.

Shafts: All shafts are manufactured from type 316 stainless steel

Spooling: The winch is equipped with a fully automatic spooling mechanism. This consists of a set of 4" diameter vertical, stainless steel rollers that are mounted in a fabricated steel roller carriage. The rollers are supported on "Oilite" bronze bushings and stainless steel shafts. The space between the rollers is adjustable to accommodate wire diameters between 5/16" and 11/16". The roller carriage may be tilted to accommodate wire leads from zero to 30 degrees above the horizontal.

The roller carriage assembly is mounted in a fabricated steel spooling carriage. This is supported on two stainless steel guide bars and is driven directly from the drum by a stainless steel roller chain reduction, a stainless steel diamond screw and a hardened steel shuttle. A clutch hand wheel is located at one end of the diamond screw. When this is disengaged the carriage maybe moved manually to suit the position of the wire on the drum.

A variable speed reducer is optional in the drive between the drum and the diamond screw. This may be manually adjusted so the winch will spool any size of wire between 5/16" and 11/16" diameter.

Brake: The winch drum is equipped with a stainless steel, self-energizing, band type brake that is fitted with a woven lining. This is applied and released by a hand lever that is equipped with a stainless steel ratchet holding device. The brake is designed to hold a minimum line pull of 10,000 lbs at mid-drum

Slip rings: Provision can be made in the drum and at one end of the drum shaft for the mounting of a slip ring assembly of the customer's supply.

Wire counter: Provision is made on the winch for the mounting of an electronic wire counter. This consists of a sheave with a pitch circumference of one meter that is mounted on the spooling carriage. A suitable shaft and mounting arrangements are provided for the attachment of the counter-sensing unit.

Weight: Approximately 5,500 lbs, not including the wire

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