Scope of work carried out:-
Machine was completely stripped down and built from base :
The tank was thoroughly cleaned and drained off old debris accumulated over the years.All fittings/ pipes were flushed out thoroughly and seals replaced. The machine parts were repainted.
Mechanical Work : Toggle system checked and found within tolerance. Tie Bars & Bushes found satisfactory , no scratches on bars working area. Moving Platen & Fixed Platen geometry checked and skimmed where needed. Bed plates were reground and old shoes replaced with new ones.
Hydraulics : All base valves cleaned and replace old seals with new one. All Solenoid Valves & top valve replaced Cylinder and intensification unit cleaned and seals replaced. New Pump and Motor , Suction filter & Oil filter replaced base valves , top valves Intensification unit & cylinder resealed
Electrical : The machine has been rewired with New PLC Delta
Guarding : Guards are original Buhler and adjusted and mechanically secured.
Operator side is pneumatic automatic & other side is manual. are all guards on machine , operator guard in automatic or manual
Rebuilt Buhler Horizontal Cold Chamber Die Casting Machine Model H-400-D2 with Direct Injection System
Locking force (nominal) Mp 400
Locking Force (strain gauge) Mp 400+ max.10%
Injection force (with intensifier) adj. Mp 38,5
Hyd. Ejection force Mp 22
Die Mounting Plates H X V mm 920 x 980 in 36 1/4 x 38 1/2
Space Between tie bars H X V mm 580 x 640 in. 22 7/8 x 25 1/4
Tie bar Diameter mm 120 in 4 3/4
Max. Die height mm 750 in 29 1/2
Max. Die height ( With mot. Die height) mm 725 in 28 1/2
Min. die height mm 200 in 7 7/8
Die opening stroke mm 600 in 23 5/8
Injection Plunger stroke mm 400 in 15 3/4
Ejector Stroke, adj. mm 145 in 5 3/4
Free cycle time sec. 7
Motor Capacity (22 kw) Hp 30 (22KW)
Machine area m 6.1 x 1.65 ft. 20 1/4 x 5 1/2
Machine Weight * tons 12,5
Hydraulic fluid contents litres (+,-) 650 lmp. Gallons (+,-) 121
Short capcity for Aluminum
Max. injection pressure
Nom. Casting area at above injection pressure
* Metric tons at 2205 lbs.
* Shot capacity is calculated: plunger area x plunger stroke x 75% filling rating specific gravity for liquid Aluminum = 2,5 or 0,09lbs/sg.in.
For magnesium alloys multiply by 0.65 for zinc alloys multiple by 2.5
For copper base alloys multiply by 3.2
* Nom. Casting area at injection pressure of 250 kp/cm2 (3500 lbs/sq.in.) = 1600 cm2 (154 sq.in)
Specifications are subject to modifications with notice.