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Plain Angle Plate

We manufacture a wide range of Plain Angle Plate, which are largely used in various industries for clamping and holding work in vertical position. These plain angle plates are also used as a vertical reference for inspection and tooling purposes such as shaping, planning, milling, grinding, drilling etc. All six working faces of our plain angle plates are hand scrapped to desired accuracy and are square and right angle to each other. Fabricated using high quality closed grain cast iron of Grade FG-220, these angle plates comply with IS 2554:1971 standards.

Features:

• Castings are stress relieved either by natural aging or by artificial seasoning and hand scrapped for surface finish of Grade-1 accuracy
• Angle plates of sizes above 300 mm are webbed to ensure rigidity
• Slots are machined for easy clamping
• Angle plates are supplied with calibration certificate traceable to National Physical Laboratory, New Delhi 

Master Cylinders

Master Cylinders squares, used on surface plates, provide one of the most reliable 90° reference standards available in the industry today. Work may be placed against the periphery and sighted for checking squareness, right angle by comparison method. Master cylindrical squares are also used for checking the squareness of the vertical axis to the horizontal axis of numerically controlled machining centres. Luthra master cylindrical squares are made of high quality alloy steel, scientifically heat treated for maximum stability and wear resistance. The periphery is ground between centres straight and round within the tolerance specified for each size, with an extremely fine micro finish. The ends, recessed are ground and lapped square with the axis within the specified tolerances as per IS 6952:1990. Each square is packed in a finished wood case with hinged cover. Luthra Cylindrical squares are supplied with calibration certificate traceable to National Physical Laboratory (NPL, Govt.Of India) New Delhi.

Standard Size and accuracy of Luthra Master Cylinder as per IS 6952:1990. Grade 1:

Other Sizes On Request

Taper Mandrel

Taper Mandrel is also called as inspection mandrels and are used for checking the alignment of machine spindle axis. These taper mandrels are made of hardened and stabilised steel. Mandrels are provided with properly ground and lapped centres for easy usage and accuracy. In morse tapers, the Taper mandrel are self holding in the socket and in ISO tapers, a tapped hole is provided for fixing the mandrel with a threaded retaining pin.

Standard sizes and accuracy of Luthra Taper Mandrel As per IS-2063:1962:

Other Sizes On Request

Parallel Mandrel

Parallel Mandrel are also called as inspection mandrels and are used for checking concentricity, parallelism and true running of components. Mandrel mounted between centres provides a reference straight line joining the two points (centres), so as to check the alignment of the centres. Parallel mandrels are made of hardened and stabilised steel. Mandrels are provided with properly ground and lapped centres for easy usage and accuracy.

Standard sizes and accuracy of Luthra Straight Mandrel and Parallel Mandrel As per IS-2063:1962:

Other Sizes On Request

• Sine Bar used for Precision measurement, setting of angles.
• Made from high quality alloy steel.
• Accuracy for Squareness, Flatness & Parallelism is within 0.005mm. upto 200mm & 0.010 mm upto 350mm
• Centre distance between rollers is within ±0.003mm
• Hardness-60±2Rc&Tempered
• Top surface is provided with magnet
• Accuracy as per IS Standards IS 5359-1987.
• Magnetic Sine Bar is also available.

• Sine vice used for Precision measurement, setting of angles, I Right angle grinding & light machining.
• Made from high quality alloy steel.
• Accuracy for Squareness, Flatness & Parallelism within± 0.005mm.
• Angular accuracy within± 5 seconds.
• Centre distance between rollers is within ±0.005mm .
• Hardness-60±3Rc.
• Made from Stainless steel.

• Precision grinding vice used for holding the jobs, spark erosion operation, right angle grinding & Light machining.
• Made from high quality alloy steel.
• Accuracy for Square ness, Flatness & Parallelism within ±0.005mm.
• Jaw pressure on work piece is forward & downward for repeatable positioning & maximum holding power.
• All sides can be used as reference.
• Hardness – 60 ± 2 Re & Tempered.
• “V” on moveable jaw for better gripping of round jobs.
• Precision grinding vice made from high quality alloy steel.

• Used for checking Squareness & straightness.
• • Made from single piece high quality tool steel.
• Inner & outer edges of blade are bevelled at 60!! angle.
• Beveled edge provides an excellent visual line contact with the workpiece.
• • Hardness 60 ± 2 Re.
• A groove on the inner corner of the stock, aids in the clearance of burr or dirt.
• Packed in individual wooden box.