Printer Friendly

Runner Breaker Increases Scrap Remelt Efficiency.

Runners from metal castings can be large and unwieldy to handle when placed on material handling conveyors or when inserted into cupolas or furnaces for remelting. A new Runner Breaker machine from Nissho Iwai American Corp., Southfield, Michigan, features a hydraulically powered, vibration-free crushing system to reduce gray and ductile iron and aluminum runners and scrap volumes by 60-80%.

The three-dimensional design of the machine's crushing mechanism enables an operator to take large runners and quickly break them down into targeted, uniform sizes.

The cones of the equipment's crushing mechanism can withstand temperatures up to 700F (371C). In addition, the operator can control the crushing action, allowing the runners to be crushed into predetermined sizes in several stages.

The breaking stroke and cycle time are controlled by a microcomputer, and production capacity is easily adjusted. The three runner processing steps are:

* feeding--small runner pieces fall through a screen and long, large pieces remain in the crushing space;

* crushing--the large pieces (those that are not smaller than the occlusion of the blade) are broken;

* discharging--sizes of the crushed pieces are adjusted by setting the occlusion of the blade.

The new equipment is available in a range of six product sizes (with from 24118-in, square openings) that can handle from 3300-48,000 lb of ductile iron/hr or from 6600-66,000 lb of gray iron/hr.

The equipment can save time by preventing bridging in the charging system, damages to the conveyor system and damage to furnace refractories as well as reduce bucket preparation and charging, melting and deslugging time.
COPYRIGHT 2000 American Foundry Society, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2000, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

 
Article Details
Printer friendly Cite/link Email Feedback
Comment:Runner Breaker Increases Scrap Remelt Efficiency.
Publication:Modern Casting
Article Type:Brief Article
Geographic Code:1USA
Date:Jun 1, 2000
Words:258
Previous Article:Automatic Shell Core Machine Reduces Costs by 55%.
Next Article:Nonferrous Release Coating.
Topics:


Related Articles
Concentric extrusion of rubber over a core.
Lots of news for injection molders at Western Plastics Expo.
Recycling & scrap reclaim.
Fundamentals of gating and feeding nonferrous alloys.
Use fabric, breaker cores to cut ductile iron finishing cost.
CMI-Wabash Uses Direct Pouring System to Cast Aluminum Intake Manifolds.
Resolving Quality, Cost Concerns in Aluminum Permanent Mold Casting.
Metal Scrap Crusher.
Modeling saves $270,000 on one aluminum diecast part. (Case history).
Crusher Increases Scrap Density, Improves Remelting Efficiency. (New Product).

Terms of use | Privacy policy | Copyright © 2018 Farlex, Inc. | Feedback | For webmasters