Rush drill and tool grinders, models 252

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Product Description:

The Models 250A, and 252 have a capacity of 3/32" to 2" diameter.

The Model 252 is the most versatile drill and tool grinder available today. The 252 can grind odd-numbered fluted tools (1, 3, 5 & 7) as well as even numbered fluted tools (2, 4, 6, 8, & 10). This is achieved with the use of a unique dual-cam workhead. The inner cam rotates at 2:1 gear ratio to grind even numbered fluted tools. The outer cam rotates at a 1:1 ratio for odd-numbered fluted tools.

The Model 252 is available in manual, semi-automatic and automatic in-feed versions.

 Selected Optional Accessories

Semi-Automatic Version

The power-driven workhead of the semi-automatic version offers a quiet, smooth rotation of the workhead.    Manual effort is reduced for heavier grinding and spin grinding operations.  Spark out is allowed to occur by using a minimum of manual infeed along with a reduction in workhead rotation speed.  The speed is controlled by a conveniently located valve; the adjacent four-way valve allows grinding in either direction.  A hand knob on the workhead is used for indexing and setup.

Automatic Infeed System

The semi-automatic versions can be equipped with the automatic infeed system.  This can increase productivity by allowing the operator to do other nearby tasks while the drill is being ground.  The system allows manual or semi-automatic grinding of all tool grinding, and use of the automatic infeed for standard drill points, countersinks and reamers.  The grinding rate is adjustable and the counter can be preset for 1-99 cycles.  An electroplated CBN wheel (standard) is used with the automatic infeed and requires no dressing.  Larger, three-phase motors are standard and an ammeter is provided to monitor the grinding load.

Overhead Wheel Dresser

Timesaving option allows truing of the grinding wheel O.D. without changing the setup. (Not for use with diamond or CBN wheels)

Features:

Sealed linear bearing with hardened guide shafts
Downfeed with ball detent in .001" increments
Hardened downfeed screw with wiper seal
High-quality diamond included for truing standard and ceramic wheels

Air Bearing Fixture

Air Bearing Fixture on Model 250A Drill and Tool Grinder
Allows precision sharpening of endmills, reamers, shell mills and other cutters.  The spindle is supported with a thin film of air providing nearly frictionless motion, resulting in a smooth, even grind.  The fixture quickly mounts on the Model 132C, 250A, 252, 380 or 382S grinders, or is available with a universal base to fit most tool and cutter or surface grinders.

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Q:Other Xuzhou Construction Machellonery Group Inc related
2009 Xugong Group has entered the construction machinery of the world's top 10, the implementation of 66 billion yuan, not only to continue to consolidate the ranked first in the construction machinery industry position in the world ranking will also enhance the overall competitive strength, marking the Chinese engineering machinery enterprises have entered the country as the first column. In 2011, XCMG achieved operating income of 87 billion yuan. In XCMG 12th Five-Year plan, has made it clear that the scale of operation in 2012 to break through 100 billion yuan.
Q:Is there any other construction machinery manufacturer besides Changsha 31 Zhonglian river?
Production base is gone, but there are other agents, such as what Xugong, Liugong ah and so on. It is called the capital of construction machinery, because 31 plus United has already covered most of the market share of heavy machinery
Q:Use of construction machinery
Concrete machinery (pump truck, pump, distributing rod, concrete mixing station, concrete mixer truck, truck mounted concrete pump, asphalt mortar truck)
Q:Tire repairing machine for engineering machinery
Tire specifications: specifications are geometric data of tire parameters and physical properties. The tire specifications are usually represented by a set of figures. The first figure represents the width of the section of the tyre, and the latter figure represents the diameter of the rims. They are measured in inches. The middle letters or symbols have special meanings: "X" means high pressure tyres; "R" and "Z" represent radial tyres; "1" means low pressure tyres.
Q:How to make the process flow of welding operation of construction machinery
Welding process is usually included in the production process, most of which are combined with the standard working hours to have practical significance
Q:What is the difference between the blue shaft and the black shaft of the mechanical keyboard?
The black axis is good for games like Starcraft 2 and dota. The red axis is suitable for playing CS like fps. As for keyboard backlighting, I don't know anything about it.
Q:What are the business scope of machinery and equipment enterprises?
Packing machinery: packing machine, packing machine, conveyor, etc.. Environmental protection machinery: water pollution control equipment, air pollution control equipment, solid waste treatment equipment. Other machinery.
Q:In law, how many years of depreciation of construction machinery? (excavator)
(1) housing and buildings for 20 years; (two) aircraft, trains, ships, machinery, machinery and other production equipment for 10 years;
Q:Registration process of a construction machinery maintenance plant in Tangshan? What information should be prepared and which departments should be handled?
To register a company, first of all want to operate well, how to manage well, and then register. Otherwise, it is useless to register. It takes a lot of cost to register a company. It is not a "fun" thing.
Q:Japan famous construction machinery and electric company
Others, such as MITSUBISHI heavy industries, Fujitsu, Mitsui, KYB, Teijin, are very good machinery company

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