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888-934-7463 (Toll Free) |
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Adding Value to Steel Plate Since 1971 |
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As a full-service custom steel plate supplier, Precision Grinding has the facilities to provide complete carbon steel plate fabrication. We have a large steel plate inventory of ASTM A36, AISI 4140, ASTM A572, AISI 1045 and A514 T1 for your custom steel plate fabrication jobs. Some of our services include:
Precision Grinding custom cuts and grinds ASTM A-36 Steel Plate in thicknesses 1/8" (.125) to thicker than 20". Our steel plate inventory of 96" x 240" ranges from 1/8" - 7" thick. Also referred to as A36 HRS (Hot Rolled Steel), we can grind up to 47" thick steel assemblies or up to 47" thick carbon steel plate. A36 plate may be the most used steel plates for welded assemblies and for drilled or bolted plates commonly used in the building and construction industries. A36 is a medium, common carbon structural steel used in applications where 36,000 psi minimum yield strength and 58,000 psi tensil strength is required. A36 Steel is considered a softer metal, sometimes referred to as a "mild steel" recognized with a hardness of approximately 20 on the Rockwell Hardness scale. A-36 Plate is excellent for machining, welding, grinding, cutting, drilling, milling, and finished steel fabrications.
AISI 4140 steel plate is suitable for heavy duty service because of high hardenability and good abrasion and impact resistance. Not subject to tempered embrittlement even after long exposure to high temperatures in the furnace, it is a medium carbon alloy steel intended for use in severe stress conditions, the steel of choice for the multitude of precision cut plates that take the brunt of wear and tear and do the actual work within steel manufacturing machines. Ranging up to a Rockwell hardness of 48-50, heat treatable, and able to be annealed in our on-site car bottom furnace, 4140 steel plate is an alloy, much harder than the lower carbon steel A36 plate. Our typical steel plate inventory includes 1/4" (.25) - 7" (7.00) thickness, 96" x 120" plates. Additionally, we supply larger sizes up to 20" and thicker. Categorized as EITHER, pre-hard, normalized, and tempered OR annealed steel plate, annealed 4140 is an alloy that can be hardened and tempered to conform to a wide range of hardening, ductility and strength. When welding 4140 plate, welds are performed in the annealed steel condition. 4140 plate is used especially in the automotive industry for tool and die, as die plates, injections molds as mold plates, and for machine bases and blocks. The final product 4140 plate is known for high wear resistance, strength, and durability. Also 4140 Steel Bar.
A572 Grade 50 Steel Plate is a high strength low alloy steel plate offering a yield strength of 50,000 psi minimum. This material offers the designer the choice to minimize weight or size while providing steel that is still workable and weldable with improved tensile properties yet the same corrosion resistance as A36 Carbon Steel. Please, inquire for details concerning various alternative grades and available sizes and thicknesses.
AISI 1045 Steel Plate is a medium-carbon steel plate which is often used in forgings. Also, 1045 steel plate is widely used for machined parts, both non-heat-treated and heat-treated. 1045 steel plate typically has a carbon content of .43 to .50 and a manganese content of .60 to .90. 1045 steel plate is often stress relieved, normalized or annealed after burning to allow for easier machining. 1045 steel plate can also be heat treated and hardened for durability.
Precision Grinding supplies small and large Base Plates for the precision machining industry. Precision manufacturing and precision machining requires a precisely flat and level floor in order to establish a flat and level beginning. The majority of buildings are poured on a concrete foundation. In order to establish a precisely flat and level floor along with a machined base that can take the abuse and punishment of tonnages of pressure forced toward concrete floors, a base plate is recommended along with appropriate precise level shimming, placed underneath the base plates to provide for a floor surface that can displace the load across a larger surface area. The precision machining equipment is then placed on top of a flat and level "Precisely Zero Ground Floor." So, the base plate is the flat and level plate whereupon a machine is mounted upon the floor. We accept your CAD/CAM drawings in most formats. Then, we cut machine bases to your specifications, and we grind these base plates to precisely flat and level within .002 - .005 inches (2 to 5 thousandths of an inch.) Global manufacturers and machinists rely on our base plates for their precision machining and fabricating, including their testing and diagnostics equipment. Especially used in the tool and die equipment industries requiring large presses hammering high-pressure strokes to form hard steel, we make base plates of various thickness up to 27" and any size up to 10' length in one plate. Typical sizes are 4' x 6' x 6" to 10' x 10' x 7". Today, 7" base plates are becoming the rule. Also known as surface plates.
We also fabricate column base plates, those steel plates used to support the bottoms and ends of columns in order to distribute the concentrated load of the column across a larger area for structural steel building support. The design and fabrication of column base plates involve spreading the load and anchoring the column to the concrete foundation. Also known as leveling plates and bearing plates, our services include plate cutting to size, boring or drilling holes for anchors, and grinding to specifications in quantities of 1 to more than 1000 per order.
The western part of the United States refers to Machine Bases or Machine Tables as base plates. Precision Grinding fabricates machine tables to customer CAD specifications. We precision weld cut plates and cut bars into tables for dyno machines, testing equipment, robotic assembly lines, and smaller precision machining production surfaces. We precision grind and machine complete these machine bases in order to provide precisely flat and stable surfaces ready to use to perform these tolerance sensitive processes. Machine table fabrication can also include tables that are precision bolted or doweled together.
Sometimes referred to as "T-slotted" base plates for the machine tool industry, a sub plate is the bottom steel plate that usually has designed holes cut out of the plate. These designed holes have the same-shape as the part being made, but are large enough to allow the parts to fall through to the collection basket. A sub plate is the physical layer of a machine that is usually the thickest plate having the the largest surface area that receives most of the pressure of stress and shock during each stamping or pressing action. Many times sub plates have a rectangular hole of 1' x 2' cut out in their centers whereby a "Bolster plate" can be bolted in place or inserted on an as needed basis. To say it another way, instead of the sub plate having part piece shapes cut out for parts to fall through, the sub plate has this available open cut-out slot for the bolster plate to fit into, whereby the bolster plate has the cut-outs shaped slightly larger than the parts being manufactured. Plate cutting, custom designed hole cutting, drilling, and grinding of sub plates up to 8" thick are standard, and Precision Grinding has the capacity to make much thicker plates per your specifications.
Bolster plates are generally recognized as the primary part of a press, or a stamping press, having T-slots. A bolster plate is that part of the press known as the bed. In order to make flatness and parallelism on a stamping press, precise holes are bored, drilled, honed, or tapped into the table bed where die plates are locked or bolted in place for precision press stamping. Cnc (computer numerical control) programming and precise measurements by our machinists combine to cut and grind precision bolster plates. We also manufacture bolster extensions which are used to bridge gaps between the die plates and the press and also to provide a console for aligning the die before being moved inside the press.
Parallels are used to bolt to the bolster plate to adjust the height of the die assembly. The height of the die is varied according to the amount of adjustment needed to adjust to the normal stroke of the press. Also known as riser blocks.
Precision Grinding fabricates the components of die plate assemblies, including pins, precision ground plates, and machined inserts. However, we concentrate on the precision grinding aspects of cutting plate drilling holes, steel machining, and and grinding plates to custom CAD specifications, instead of the assembling of the components or the design. Custom cut die plates of various sizes are the bulk of the machine tool industry's individualized and identifiable plates, machined and drilled for individual custom machining applications. Each die set is used to cut out, to punch out or to press various metals into a specific part for bulk jobs and for mass assembly production of part pieces. When a machine's sole purpose is to manufacture a single part repetitiously, the machine may have the die plate assembly built into the machine. Generally speaking, the majority of machines use multiple die plate assemblies that can be switched or changed-out on an as needed basis when another new run of a different part or multiple parts need to be produced. Our die plate specialty is in the manufacturing of custom die plates. When you need custom sized die plates of any thickness for your presses or other machining, please, request a quote from us. We also custom finish die shoes, and we can provide combination die plate and die shoe fabrication. Essentially adding support for the die plates, die shoes are mounted to the die outside of the press so that the entire die plate and die shoe assembly can be loaded into the press and hydraulically or mechanically clamped. Also known as Quick Die Change Plates (QDC) or quick change plates.
Abrasion resistant plates outlast ordinary steel plates. Wear plates are replaceable plates, whereas other components of the machine are far too expensive to replace. When two metal parts rub or wear together, one or both of the surfaces wear or degrade beyond tolerance levels. Highly used machine plates, die plates, chutes, and the iron castings of presses and other machinery can be protected or made to last much longer with the addition of wear plates. Wear plates are fabricated as a hardened liner or a harder abrasion resistant surface plate in order to correct for the wear on the two metal parts that rub or wear together, such as in the case of the top plate wearing against the vertical column of a threading rod press. These wear plates are produced from fine-grained steels, and these AR plates give a more uniform product with higher hardness, greater strength, more toughness, and improved service life. Abrasion Resistant plates are suggested wherever abrasive materials are handled or resistance to sliding or impact abrasion is required. We offer wear plates from Medium Hard steel with a Brinell Hardness range of 200-250 to quenched and tempered alloy abrasion resistant plate, AR 360 with a Brinell Hardness ranging from 360 to more than 500.
Along the same reasons and needs as for wear plates, liner plates are usually placed into positions where this plate provides a cushion to the the parts being made or to the iron casting of the machine. Liner plates are usually built from Bronze or some softer metal than the steel plates so that this softer metal can wear without wearing the much more expensive plate or expensive or fragile part or the machine itself. We manufacture liner plates from various metals and from various softer steels in Rockwell hardness varying from less than 20 upwards to near 80, depending upon your needs. Please, contact us for details.
With a large in stock steel plate inventory, we can produce most any order of ground plates and ship your order to you within 1 - 4 weeks. Precision Grinding supplies cut plates, machined plates, ground plates, and finished plates including, die shoes, die plates and quick die change plates, base plates, sub plates, bolster plates, wear plates, liner plates, sole plates, stripper plates, grout plates, and any other kind of steel plate that requires plate cutting, machining, grinding, and/or finishing. On-site, we have a furnace, specifically for stress relieving and steel annealing. When you need ground steel plate, including steel grinding or regrinding plate of any type for a new or a reconditioned machine or for any structural plate or any steel part, please, call Precision Grinding at 1-888-We-Grind. We are a full-service fabrication facility, and with over 60,000 sq. ft of space, we can handle your order.