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C-Frame Press Manufacturer & Factory

C-Frame Fixed Bolster Press

JH21Z

SINGLE POINT, FROM 25-400 TONS

Press Information & Overview

High Quality, Industry Leading Mechanical
C-Frame Presses

JH21Z-1
  • Good rigidity, stable accuracy
  • Small size bolster, strong support strength
  • Single-sided adjustment rails, great efficiency
  • High-strength parts
  • Efficient new transmission
  • Safe and reliable piping design
  • Self-developed high-performance wet clutch
  • C-shaped opening design facilitates, easy changing of molds
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Standard Components & Optional Accessories

Standard Components

  • Wet clutch (WORLD)
  • Hydraulic overload protecting pump
  • Auto lubrication system
  • Manual lubrication system
  • Balance cylinders for slide and upper die
  • Joint for miss-feeding
  • Touch screen
  • Electronic crankshaft angle indicator
  • Cam controller
  • Die height adjusted
  • PLC: Programmable logical controller
  • Air source quick connector
  • Shock Absorption Pads
  • Working lamp
  • Air blowing
  • Second degree drop
  • Preset counter(Touch screen display)

Optional Accessories

  • Dry clutch
  • Air cushion apparatus
  • Light curtain Protection
  • Die quick change device
  • Foot pedal
  • Output shaft
  • Frequency control
  • Slider handle hole(JH21Z-125~JH21Z-400)
  • Stripping device (User selection should be specified in the contract)
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Wet Clutch and Brake

High performance wet clutch
High Performance Wet Clutch

The World Wet Clutch use Japanese advanced technology which has very well stability. Adopt oil bath lubrication and form oil slick betdween friction plates, friction loss small, long service life and low maintenance cost.

Balanced Cylinder

Balanced Cylinder
Balanced Cylinder

The balance sliding block and upper die weight can reduce the impact and noise, eliminate the gap between the connecting rod and the sliding block, reduce the impact and abrasion of loaded parts and enhance the molding precision of the parts.

Crankshaft

Crankshaft
Crankshaft

High quality alloy steel die forging crankshaft with compact structure, with good smoothness and flexible rotation.

Overload Protection

Overload protection
Overload protection

If the usage capacity exceeds the
capacity of the device itself, overload
stop will occur to protect the machine.
（Standard across the entire range）

Digital Die Height

Digital Die height indicator
Digital Die height indicator

Die height is displayed in real time
through the electronic reader, and all
the data is clear at a glance

Light Curtain

Light curtain
Light curtain

Used to protect operators from getting
too close to a press while its moving.
Standard configuration mounted to
side mesh guarding.

Gear

Gear
Gear

High strength welded gears (surface grinding treatment) taper fit of the gear to the crankshaft provides true concentricity between crankshaft and gear. Integrated hard end pinion minimizes required gear diameters and related drivetrain inertia.

JH21Z C-Frame Fixed Bolster Press Specification

Specifications Unit JH21Z-25 JH21Z-45 JH21Z-60 JH21Z-80 JH21Z-125 JH2Z1-160 JH21Z-200 JH21Z-250 JH21Z-315 JH21Z-400
Nominal force KN 250 450 600 800 1250 1600 2000 2500 3150 4000
Nominal Stroke mm 2 2.5 2.5 3.2 3.6 4 4 4 4 4
Slide Stroke mm 40 50 50 60 70 80 100 100 100 100
Slide Strokes Per Minute Fixed min-1 140 130 120 110 90 80 65 55 55 55
Variable 95-165 85-155 80-145 70-130 60-110 50-95 45-80 35-65 35-65 35-65
Maximum Die Set Height mm 200 240 260 290 320 350 380 420 420 450
Die Height Adjustment mm 30 30 40 40 40 50 50 50 60 60
Between slide center and frame mm 150 180 210 240 270 300 335 360 360 385
Columns Distance mm 470 525 560 580 630 696 910 980 980 1050
Bottom size of slide L×R mm 360 400 480 540 620 700 880 900 900 1020
F×B mm 250 340 400 460 520 580 650 700 700 750
Shank Hole Size Dia mm 50 50 50 50 70 70 70 70 70 70
Depth mm 50 60 70 70 80 100 100 100 100 100
Bolster size L×R mm 720 825 930 950 1100 1175 1390 1500 1540 1700
F×B mm 250 340 400 460 520 580 650 700 700 750
Blanking Hole Diameter mm 150 150 150 180 200 220 240 260 240 240
Bolster Thickness mm 60 80 100 110 125 135 150 160 160 180
Bolster Surface Height mm 750 775 800 845 850 900 1000 1000 1000 1100
Overall Dimensions F×B mm 1500 1585 1540 1765 2040 2305 2600 2660 2720 2850
L×R mm 945 1075 1200 1200 1320 1420 1540 1640 1680 1750
H mm 2020 2300 2385 2600 2930 3160 3700 3720 3720 3940
Distance Between Foundation Bolts F×B mm 960 1050 1070 1195 1410 1640 1980 2140 2130 2285
L×R mm 690 760 840 920 1040 1140 1360 1460 1500 1750
Press Pressure Mpa 0.5

Cases

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