Hot Forging Press (NHF)

FRAME

The frame is rigid built from fusion welding quality steel plates with box-type structure duly stress-relieved & then accurately machined. The structure alongwith all its rigorously calculated key components and run through computer aided analysis for their loaqd distribution, and inspected thoroughly after welding. This approach thus minimizes deformation, maximizes the accuracy of the product, and extends the service time of dies and die shoe to their limits, reduces the vibration during operation.

ECCENTRIC SHAFT

It is obtained from a forged piece of carbon alloy steel. Prior to the machining, the shaft undergoes an ultra-sound inspection and a chemical and metallographic test. Shaft is ground finished on bearing surfaces. Even in case of heavy load, the shaft won´t be deformed. Its bearing area is large so that the stress can be decentralized to lengthen the serving of the shaft.

SLIDE

The slide is single piece cast steel and assembled with the link through pins housed and profusely lubricated inside the slides. Corner gibbing provides long parallel guiding surface that maintain slide parallelism under off centre load resulting increase of precision tooling life. The slide is fitted with replaceable bronze liners. The Gib Adjusting points are easily accessible.

HIGH TORQUE, LOW INERTIA SEPARATE TYPE CLUTCH/BRAKE

Clutch/Brake designed especiallyfor high frequency intermittent cycle and heavy load press operation. High torque, smooth start–up, fast coupling. Unique brake designed to be fast heat dissipation and low noise. Non asbestos linings, abrasion resistant, easy maintenance, more environment protection conscious.

SLIDE ADJUSTMENT & STICK RELEASE MECHANISM

Motorised Slide to adjust the vertical Ram stroke, it can be adjusted with in the range 0.01~ 10mm. It is conveniently designed to facilitate installation or removal of the mold. Stick release device and upper knockout device are provided for higher productivity and work efficiency.

LUBRICATION

The fully automatic and centralized grease lubrication system can reduce friction between varied mechanical parts and extend the servicing life of the mechanical parts. A safety device is also available to help secure that all the mechanical parts are in a lubricant state to prevent the oil circuits from being blocked to prevent thelubricants from running out.

Technical Specifications


MODEL NHF-250 NHF-400 NHF-600 NHF-750 NHF-1000 NHF-1350 NHF-1600
CAPACITY TON 250 400 600 750 1000 1350 1600
TONNAGE RATING POINT MM 5 5 5 5 5 5 5
STROKE LENGTH MM 150 160 170 190 220 240 270
STROKES PER MINUTE SPM 110 110 105 100 90 85 80
DIE HEIGHT (S.D.A.U) MM 400 530 560 580 640 700 780
ADJUSTMENT OF RAM MM 08 08 08 08 10 10 10
BLOSTER AREA (LR X FB) MM 600 X 700 600 X 700 670 X 780 850 X 900 900 X 1000 1000 X 1050 1200 X 1200
SLIDE AREA (LR X FB) MM 580 X 600 580 X 600 640 X 680 740 X 780 830 X 880 880 X 920 1050 X 1000
SIDE WINDOW MM 320 X 500 320 X 500 360 X 720 400 X 740 440 X 760 500 X 800 600 X 700
LOWER EJECTOR (TABLE) TON X MM 2 X 40 2 X 40 2 X 40 2 X 40 2 X 50 3 X 50 3 X 50
UPPER EJECTOR (SLIDE) TON X MM 1 X 20 1 X 20 1 X 20 1 X 20 1 X 25 2 X 25 2 X 30
MAIN MOTOR Kw 18.5 30 37 45 55 75 90
AIR PRESSURE kg/cm2 4 – 5 4 – 5 4 – 5 4 – 5 4 – 5 4 – 5 4 – 5
SLIDE ADJUSTMENT MOTORISED Kw 0.75 0.75 0.75 0.75 1.50 1.50 1.50
LUBRICATION AUTOMATIC GREASE GREASE GREASE GREASE GREASE GREASE GREASE