metal locking service inc. mls machine shop - cast iron … · metal locking service inc. mls...

Metal Locking Service Inc.MLS Machine Shop


216 Colgate AvenueBuffalo, NY 14220

Toll Free (866) FIX.IRONFax: 716.824.0903

Email: [email protected]

www.castironrepair.com On-Site, On-Time, AnytimeOn-Site Industrial Machine Repair

CastIronRepair

Table of Contents

www.castironrepair.com


216 Colgate AvenueBuffalo, NY 14220

Toll Free (866) FIX.IRONFax: 716.824.0903

Email: [email protected]

Metal Locking Procedure ...................................... Page 3

Power Transmission ................................................ Page 4

Industrial Machinery ............................................... Page 5

Aggregate Equipment ............................................. Page 6

Past Projects ........................................................... Page 7

Company Introduction

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Metal Locking Service Inc., founded in 1942, employs a precise,mechanical method of making permanent repairs to broken castings andmachine parts.

No heat is used, thus no stresses are introduced and no post-repairmachining is necessary to correct misalignment and warpage. Since there isno heat, metal locking repairs can be made in restricted areas whereflames or welding arc is prohibited. Repairs are often made on location inthe plant, without the necessity of major dis-assembly.

Maintaining production and reducing down time of broken equipmentpresents many new challenges. Solutions are arrived at after a carefulanalysis and then applying our experience to make a proper, dependablerepair. The quality and craftsmanship thus achieved have earned for us therecommendation and endorsement of equipment manufacturers, insuranceunderwriters and inspection services.

We are proud of the ever-increasing list of satisfied customers which is becoming world-wide in scope.

The picture stories which follow are an attempt to show a cross section of repair applications. Most are“maintenance” repairs on equipment in use. It should be noted, however, that a substantial portion of our businessis on new equipment and castings. Foundry casting faults, mishandling and improper machining duringproduction, all contribute to the need for our service.

We welcome the opportunity to make an appraisal of your equipment repair problem.

• Machine Shop EquipmentLathes, Planer Beds, Boring Mills, etc.

• Stamping Equipment, PressesRams, Flywheels, Frames, etc.

• PowerBlocks, Heads, Transmission Housings

• Foundry ProductsDefects in New Castings

• PumpsWater, Steam, Gas, Air

• Crushing EquipmentShells, Eccentrics, Spiders,Jaws, Arms

www.castironrepair.comToll Free (866) FIX.IRON

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Another form of lock is this metal inlay, alsoknown as master lock. Size, shape andmetal used for inlay varies with therequirements of each repair or equipmentoperation. This is used in areas of highstress concentration, particularly where it is

necessary to dissipate local stress over wider area; gain strength frominternal ribs; or to obviate local cavitation such as sand holes, etc.

Preformed locks of hightensile alloy are inserted into

the slot. These locks are peenedinto the slots, one on top of theother, to a depth limited by thecasting thickness and determinedby the strength required.

Metal between each drilledhole is removed by ripping it

away with pneumatic tools to forma slot. The stock thus removed isnarrower than the drilled hole,thus forming a serrated opening.

Drilling fixture is attached atright angles to the crack. A

hole pattern is drilled and this isrepeated at intervals from 3/4 to 11/4 inches apart.

Entire repair area ispeened flush and finish

ground as you see here.

After the locks are installed, holes are drilled, tapped and threadedfasteners are applied. These are spotted along the entire length of the crack,

overlapping one another. Their purpose, in part, is to fill the fracture with newmetal and provide a pressure seal.

1. 2. 3.

4. 5.

• Air CompressorsCylinders, Bases, Pistons, etc.

• Gears, Flywheels

• Roll Housing


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Broken tooth on apinion gear

Typical gear tooth repair.Replacement teeth are fabricated,fit and aligned to ensure smooth,tight fit with proper lash

Repaired pump that haspassed pressure testing,with repair highlighted forclarity

Damaged pump in theprocess of being repaired;locks and lacing beinginserted

Large turbine scroll with porosity in the machinedsurface, being repaired by our metal locking processand hand finished back to machined dimensions

Hub repaired by metallocking process

35,000 lb forging press ram being repaired,cast iron or cast steel - no problem

Broken flangeon a large castiron hub

Broken press crown, metallocking repair in-process


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16 cylinder dieselgenerator to be repaired

MLS arrival off the coast of Luanda,Africa for a metal locking repair ofa damaged diesel engine on an oiltanker

Repaired window section of16 cylinder diesel generator,repair highlighted for clarity


Cast Iron Repair

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Repaired and stress relieved

Broken rockcrusher arm

Large rebuilt ball mill trunnionhousing

Broken 600 hpelectrical motorhousing

Repaired electrical motorhousing

Repaired to O.E.M.

Broken naturalgas pump

Broken valvebody



16-CylinderLocomotiveEngine withbroken feet

Repair completeRepaired withmaster locks

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On-site inspection in San Jose, CA of large ball millthat had separated from the drive end trunnion

Cracked El-Jay cone stylerock crusher

Gyratory crusher casting

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