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Technical data etching press JH-30 |
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Bed size |
30x60 cm |
12"x24" |
Diameter of upper roller |
8,5 cm |
3.3" |
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Bed thickness |
1 cm |
0.4" |
Wall thickness of upper roller |
1,5 cm |
0.6" |
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Press dimensions |
Diameter of lower solid roller |
8 cm |
3.1" |
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- Length (of side frames) |
51 cm |
20" |
Diameter of spoke wheel |
95 cm |
37.4" |
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- Width (incl. spoke wheel) |
42 cm |
16.5" |
Thickness of solid steel side frames |
1,6 cm |
0.6" |
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- Height |
35 cm |
14" |
Max. clearance between bed and upper roller |
4 cm |
1.6" |
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Length of rollers |
30 cm |
12" |
Pressure spindles screw thread (metric) |
M 12 |
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Weight of the press |
45 kg |
100 lbs |
Dimensions of underframe (optional) |
HxWxL
80x37x48cm
31"x15"x19" |
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Work height, without underframe |
10 cm |
4" |
Work height with underframe |
89 cm |
35" |
General
The plate material; "printing bed":
The plate is made of laminated paper sheets, in liquid resin, pressed under high pressure and temperature. The plate is covered, on both sides, with a white melamine coating. Perfect bed material, compared with a metal bed; does not warp, no oxidation, cheap, safe (=not heavy), very pressure resistant, easy to make marks on the bed.
Top roller driven or bottom roller driven:
Regularly printmakers ask us which drive system is better. There is no difference, the paper does not "feel" the difference while being printed. Some believe that top roller driven is better, some believe bottom roller driven is better. We have both systems available. |
These presses are designed as lighter versions of the JS series and is very similar in construction. The presses are driven directly on the lower roller by means of a star wheel. The relatively small size of this press and the fact that the rollers are provided with ball bearings makes a gearing system unnecessary. The hard synthetic plate is guided on both sides by the solid steel frame. If the spindles are loosened the upper roller is raised by spring pressure. This results in a space appearing between the upper roller and the bed plate thus facilitating the sliding of the printing sandwich. The printing of lino and wood cuts is also possible because of the above mentioned spring pressure. It is possible to dismantle the star wheel which is secured with a key joint. Shims of leather or cardboard can be placed under the spindles thus providing more flexibility during printing. (useful while printing woodcuts that are not quite plane) . These presses can be suppplied with stands. The sideframes have threaded holes in order to fix the press on a stand. The stands are equipped with two wooden shelves. There are two stands; one without casters and one with casters (with break)
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An etching press JH-50 with an underframe without casters. The underframe is made of welded tubes and is connected to the press with four bolts. |
An etching press JH-50 with an underframe with casters. The casters have nylon wheels of 9 cm diameter and have a break in two directions. |
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Image of the underframe. The tubes in the top show the holes for the attachment to the press. | |
