Clam shell gate

Listing ID #4138260

UNICON has been Manufacturing clamshell gates for bulk material handling systems for more than decade. Our clamp shell gates can be used for any type of bulk material handling whether it is high temperature, adhesive or abrasive. We are giving Hrdox 400 or Hardox 450 lining for all material contact surfaces according to the application. Our state-of-the-art clampshell and testing facilities is the key to achieving optimal performance.

The outboard end of the hinge pins of double clamshell gates are supported to keep them in line even as the parts wear. The box and blades are heavy enough to do the work they were designed to do. The blades are shaped to reduce friction as they slice through the material in closing. The tooth gear quadrants that we use on our double clamshell units are designed for long trouble free use. One big advantage of using a double clamshell gate is that the material drops out of the center of the opening as the gate blades separate.

UNICON Clamshell Gate Features Include:

  Construction is of minimum 1/4" mild steel plate, heavily reinforced where necessary. Bolting flange is constructed of heavy structural steel angle. All welding is per AWS standards. Gate pivot shafts are C-1045 steel shafting, and are attached to heavy backing plates welded to the gate body.

Regreasable bushings are located at the four pivot points attached to the gate radius plates. Bushings are easily regreasable via pressure lubrication fittings located on the pivot shaft ends. Duplex clamshell design incorporates timing gear sectors at each of the four pivot points. This configuration assures smooth, even actuation of both clamshell halves. Gate valve flange includes our standard bolt hole pattern. Actuation is by two heavy-duty, pivot-mounted, double acting pneumatic cylinders, constructed to ANSI specified dimensions for interchangeability. Cylinders include hard chrome plated rods, and long-wearing, double seal configurations. Cylinder rods are clevis-mounted to the gate blades. Cylinders are sized for actuation at a minimum of 80 psig clean plant air. OR Actuation is by two or three heavy-duty, pivot-mounted hydraulic cylinders, constructed to ANSI specified dimensions for interchangeability. Cylinders include hard chrome plated rods, long-wearing, double seal configurations, and heavy steel cylinder tubes. Cylinders are clevis-mounted to the gate blades. Cylinders are sized for actuation at 1500 psi hydraulic pressure.

 OPTIONAL EQUIPMENT:

 Add for material contact surfaces to be lined with abrasion resistant steel - 360 BHN. Add for a directional control valve mounted to the gate housing and piped to the cylinders. Add for each pair of limit switches mounted to the gate housing for remote open/close position indication.