Equipment
State of the Art
B&G Machine’s main philosophy is to do the job properly you have to have talented people and the right tools. From 3 dedicated, 10 ton overhead cranes and 14 independent jib hoists, to a 3000 HP / 10,000 lb/ft. torque dynamometer and state-of-art art equipment, we completely control and load test finished engines, including checking critical performance elements such as altitude and climate, ensuring that every one of our engines runs properly at the customer site.
Putting the best equipment in the hands of talented people that man our shop means that every engine B&G delivers is guaranteed to work like new and deliver a long, dependable life.
Equipment by Department
Below you will find a list of our equipment and its capabilities organized by department (click a department links to jump to that section).
Engine Block Department
B&G Machine, Inc. boasts one of the largest and most advanced engine block departments in the world. By utilizing precise microprocessor controlled equipment, we are able to ore and surface to exacting tolerances that are well within any OEM specification.
Rottler F99Y three axis machining centers (2)
A multi purpose machine for large diesel engines. B&G purchased the first one ever built – worldwide. It is built to handle even the biggest blocks, including the 20 cylinder CAT 3520. This machine can bore and sleeve cylinders, main bearing bores, cam bores, and surface blocks and heads. The machine is completely programmable and repeats to .0001″. This control gives B&G the edge over other shops with outdated, conventional boring bars. Capacity: 132 inches, Horizontal. Infinitely variable spindle speeds to 1000rpm, infinitely variable feed rates to .040″/rev.
Rottler F88 two axis machining centers (2)
Like the F99Y, our F88′s are dedicated machining the decks and cylinder of large diesel engine blocks. The F88 is also programmable and repeats to within .0001″. B&G Machine was one of the first in the industry worldwide to employ this technology. Since that time, this equipment has been the backbone of our engine block department. Capacity: 108 inches, Horizontal. Infinitely variable spindle speeds to 1000rpm, infinitely variable feed rates to .040″/rev.
Rottler F84 two axis machining center
This high speed boring bar utilizes much of the same technology as the larger machines, but allows twice the spindle rpm. With the ability to turn 2000rpm, the F84 is a high volume production oriented machine ideal for boring and sleeving cylinder blocks up to the size of a 3412. The machine can bore a cylinder bank unattended and compliments the larger Rottlers by acting as a quick was to turn some of the smaller blocks without tying up a larger machine. Capacity: 84 inches, Horizontal. Infinitely variable spindle speeds to 2000rpm, infinitely variable feed rates to .040″/rev.
Rottler F65 three axis machining center
Through the use of computer programming technology, the F65 provides the foundation for much of our general machining. Boring and surfacing for machining for many of the odd housings that come in are done in this machine. The F65 can be used to blueprint engine blocks. It can also be used to quickly get a job through that would otherwise tie up one of the larger boring and surfacing machines.
Cylinder Head Department
Speed, accuracy and technology define B&G Machine’s cylinder head department. Precision cutting tools, CBN technology, and efficient machinery make our cylinder head department dynamic. We machine all makes and models. We are able to build cylinder heads with all new replacement parts rather than accept qualified valve train often associated with exchange cylinder heads. With the use of world class innovation, B&G’s cylinder head department out performs most others giving you the best product that the industry can offer.
Rottler SF2 surfacing machine
A high speed volume oriented surfacing machine capable of producing consistent and exact surface finishes. B&G was one of the first companies in our industry to use the SF2′s technology in our cylinder head department. Rottler pioneered CBN technology and B&G immediately followed suit, breaking away from traditional grinders which produce heat while machining. This rigid machine gives us the ability to machine cylinder heads better than other machine shops… cylinder heads with tolerances that exceed the requirements set by the OEM.
SERDI 100 seat and guide machine
The SERDI 100 seat and guide machine is a revolutionary machine specially designed to machined valves seats. With the ability to machine all three seat angles in one cut, this machine gives B&G quality beyond most… especially when compared to people who still use stones to cut valve seats. Valve seat to guide concentricity is machined to within .002″ while the often overlooked valve protrusion is controlled from cylinder head to cylinder head. The machine utilizes airfloat technology, a live pilot, and a floating sphere to locate guide bores. This unique technology gives B&G the ability to accurately and efficiently machine valve seats.
Crankshaft Department
As an industry leader, B&G Machine sets the standard for crankshaft grinding. With three grinders, over 50 hub-mounted grinding wheels, two polishers, heat treating ovens, Magnaflux equipment, straightening equipment, and balancers, B&G is exceptionally well tooled to address whatever challenges the industry may bring. B&G works extensively with many OEM’s and exchanges insight and innovation for various repair procedures. This extend this level of professionalism and expertise to our broad array of customers world wide.
Berco 575 crankshaft grinder
In late 2005, B&G worked with Berco in Italy and purchased this machine in a major expansion to the crankshaft department. With three Berco crankshaft grinders on the floor, this is our largest with a capacity of almost 14 feet. This crankshaft grinder remains one of the largest in the United States. Grinding larger Wartsila, Waukesha, or Caterpillar 3600 series crankshafts can be accurately done with the added used of specially designed overhead compensators. These take much of the weight off of the machine. B&G finishes its crankshafts to within .0002″ TIR, well within most requirements of .001″.
Berco 351 crankshaft grinder
Similar to the 575 above, the Berco 351 has a capacity of 10 feet. Complimenting the larger 575, we use this grinder to machine Caterpillar 3516, Cummins QSK60, or MTU 4000 crankshafts. Steadyrests are used to support the crankshafts while machining. B&G finishes its crankshafts to within .0002″ TIR, well within most requirements of .001″.
Berco 270 crankshaft grinder
With a capacity of 7 feet, the Berco 270 provides support behind the 351 by allowing us to machine most of the smaller (Caterpillar 3412) without tying up one of the larger grinders. Like the larger grinders, the Berco 270 is built with Italian precision, rigidity, and innovation. All of these characteristics that are built in the machine make it well suited to handle industrial work. Steadyrests are used to support the crankshafts while machining. B&G finishes its crankshafts to within .0002″ TIR, well within most requirements of .001″.
Storm Vulcan crankshaft polisher (12 feet)
Specially built for B&G’s large needs, Storm Vulcan customized a large machine that is used to produce exact finishes on various shafts. Primarily used for finishing crankshafts, this machine is suitable for finishing any shaft that can fit in its bed. With the capacity of over 12 feet, we can produce surface finishes consistently in the 4 to 6 Ra range. Infinitely Variable speeds combined with specialized tooling help to differentiate this machine.
Storm Vulcan crankshaft polisher (10 feet)
B&G dedicates this machine to finishing crankshafts after grinding. Treating this as a separate machining operation from grinding makes us unique, while other still polish in the grinding machine. Primarily used for finishing crankshafts, this machine is suitable for finishing any shaft that can fit in its bed. With the capacity of over 1o feet, we can produce surface finishes consistently in the 4 to 6 Ra range. Specialized tooling helps to differentiate this machine.
Gleason crankshaft welding center
B&G pioneered crankshaft welding with large diesel crankshafts. The controlled heat treating relieved thermal stresses and can be used in many applications even outside of crankshafts. The Gleason process incorporates three machines: an automated welder (which skips over the oil galley holes), an oven that maintains within 1° Fahrenheit, and a straightening press. The straightening press can be used to isolate the affected region so that work is only performed where it needs to be addressed. Capacity is 10 feet horizontally.
Magnaflux wet particle inspection (20 feet length, 36 inch diameter)
Custom built by Magnaflux for B&G’s demanding needs, the Magnflux system is used for crack detection. This wet magnetic particle inspection process gives us the ability to see inclusions and cracks. “Impressive” doesn’t do justice to the size of this machine… able to inspect any shaft up to 20 feet long and 36 inches in diameter. B&G staffs several ASTM Level II technicians specially trained in crack detection. This sets the stage for quality control and the ability to do things that other machine shops simply can’t do.
Magnaflux wet particle inspection (10 feet, 18 inch diameter)
The Magnflux system is used for crack detection. This wet magnetic particle inspection process gives us the ability to see inclusions and crack during the inspection process. This machine is capable of inspecting any shaft up to 10 feet long and 18 inches in diameter. B&G staffs several ASTM Level II technicians specially trained in crack detection. This sets the stage for quality control and the ability to do things that other machine shops simply can’t do.
Assortment of grinding wheels
A sign of our dedication to producing the finest crankshafts available is evidenced by the expansive inventory of crankshaft wheels. With 54 wheels all mounted on hubs (compared with most shops who have two or three), this investment give us the ability to properly machine the crankshaft journals to exact tolerances producing proper radiuses with journals that are on size.
Camshaft Department
With a long history of camshaft grinding that dates almost 60 years, B&G Machine has a huge assortment of masters for different profiles. This depth makes us very unique in a service that is often over looked.
Berco RAC 2130 camshaft grinder
Berco, built in Italy and recognized as the industry standard for camshaft grinders, is the machine of choice at B&G. With emphasis on rigid design, accuracy, and innovative controls, this machine is used to restore lift, duration, and profile for most camshafts. The Berco RAC 2130 can machine camshafts 12 feet in length with a single set up. B&G is one of a select few with a camshaft grinder this size. Every engine built at B&G has a reconditioned camshaft. This unique service saves engine life by addressing the profile of the camshaft, this minimizing the potential for camshaft related problems.
Berco RAC 1500 camshaft grinder
Berco, built in Italy and recognized as the industry standard for camshaft grinders, is the machine of choice at B&G. With emphasis on rigid design, accuracy, and innovative controls, this machine is used to restore lift, duration, and profile for most camshafts. The Berco RAC 1500 can machine camshafts 8 feet in length with a single set up. Every engine built at B&G has a reconditioned camshaft. This unique service saves engine life by addressing the profile of the camshaft, this minimizing the potential for camshaft related problems.
Expansive Inventory of camshaft masters
“Over 600 Masters.” That statement speaks numbers for our dedication to this service. With one of the largest inventories in the world for industrial camshaft masters, B&G sets the standard for versatility. We have been grinding camshafts for almost 60 years. This experience has given us the edge in the industry with a finished product that is machined with the correct profile and timing while maintaining a straightness of .0003″
Connecting Rod Department
With versatile equipment in our rod department, B&G Machine, Inc. can machine most rods. We use new pin bushings in the process. With this machining ability, we can assemble cylinder packs that are used in our engine assembly department. This is extremely rare and allows us the ability to customize our rebuilds and have control over the quality of the finished product.
Sunnen LBC 1803 rod hone
Sunnen, the industry leader in honing technology and abrasives designed this machine for industrial connecting rod honing. This machine is used to recondition the big end of the rods to proper sizing. The specification of this bores are inspected across three axis and held within .0002″. This extreme accuracy is well within the OEM guildlines which are often .001″.
Sunnen LBB 1710 rod hone
Sunnen, the industry leader in honing technology and abrasives designed this machine for general connecting rod honing. Slightly different than the LBB 1710, this machine is also used to recondition the big end of the rods to proper sizing. It serves as a very strong support machine behind the larger hone. The specification of this bores are inspected across three axis and held within .0002″. This extreme accuracy is well within the OEM guildlines which are often .001″.
Sunnen MBB 1660 honing machine
This machine is dedicated to some of the odd chamfering and minor machining that may need to be done outside of the other two hones. Designed for lighter industrial machining, this machine allows the other two hones to remain dedicated for machining pin pushings.
Balancing Department
B&G has raised the bar for industrial engine balancing. With the ability to balance anything from turbine rotors (Solar, Lycoming, Pratt and Whitney, GE) to large diesel and gas crankshafts (Caterpillar 3508, 3512, 3516, Cummins K38, K50, QSK50, MTU 20V4000, 16V4000, 12V4000, Waukesha VHP), we have the expertise and the knowledge. Much of the equipment is custom built for B&G’s demanding and unique needs.
CWT complete balancing center
B&G worked closely with the experts at CWT to produce a machining center unique in our industry. The computer controlled systems combined with the custom bob weight assemblies make this make ideally suited to machine any industrial shaft up to 12 feet in length. The machine automatically ramps up the rotational speed of the shaft, sampling imbalance as it speeds. Upon slowing, the computer display shows where and how much material needs to be removed to bring the shaft within specifications. This technology put to use for crankshafts this size remains unmatched anywhere.
Stewart Warner industrial balancer
The smaller Stewart Warner balancer at B&G is an analog little brother to the larger CWT machine. We use this machine for many of the smaller, odd industrial shafts like turbine rotors and high speed shafts. This machine compliments the larger machine usually dedicated to larger crankshaft balancing. Capacity: 6 feet in length.
Static balance scales
In addition to the operating the machines, B&G technicians are properly skilled in static balancing for other related components in the rotation assembly of an engine. This would include pistons, rod assemblies, wrist pins, etc. We even balance the rotating assemblies in our Caterpillar 3508, 3512, or 3516 overhauls. This service minimizes vibrational fatigue associated with imbalance.
General Machining
In addition to all of the specialized equipment above, B&G Machine has many lathes, taper grinders, cleaning equipment, and welding machines. This makes us a truly versatile industrial machine shop like no other. We are able to address the service needs of our customer base while providing them solutions outside of our routine scope of work.
Engine Testing
Taylor Dynamometer
B&G has one of the largest dynamometer cells in the worldwide industrial engine market. This state of the art facility is built around large HHP engines. Precise computer monitoring couple with the engine manufacturer’s electronic control data allows us to operate engines while simulating various load cycles and conditions, including altitude. This final step in our engine assembly process insures that the engine is operating in the correct performance specifications while ensuring no leaks. In addition, the engines leave our facility completely broken in and ready for install. Capacity: 3000HP, 10,000 ft-lbs. torque.
