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KRRASS JH21 C Frame Pneumatic Press

APA C Frame Pneumatic Press

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APA C Frame Pneumatic Press

APA Series pneumatic press machine adopted Japanese technology wet clutch is featured of stable working performance, high production efficiency, low noise, and less maintenance cost. Equipped with Japan SHOWA hydraulic overload protection pump ensuring longer service life. Its the most practical and mature small size press machine in the stamping field in recent years. Highly recommended for production of metal pieces.

KRRASS JH21 C Frame Pneumatic Press

We have designed the APA-series c-frame Pneumatic Press with different power ranges, from 25to 400 tonnes.

Specifically designed to perform work involving deep-drawing, stamping, die-cutting, forming, etc.

The latest generation APA series hydraulic presses now feature a wide range of uses including the possibility of incorporating these machines in automatic production lines.

Standard Equipment

Introduction to Configuration

FEA & Stress Analysis

Stress Analysis & Finite Element Analysis

The CAE software SOLIDWORKS used as the method to analyze the linear static construction, stress and deformation for press break and laser cutting machine frames. So for complicated structures, highly complex loading’s, transient modelling and combination of the above, FEA makes sense.

Stress Analysis & Finite Element Analysis

STRUCTURE AND TABLES

KRRASS has invested huge amount for the most advanced production equipment from all over the world. including 12 sets of Italy PAMA CNC boring and milling machine, German Gleason grinding machine, German Liebherr gear hobber, Japan TOSHIBA CNC machining center, etc.

With powerful productivity and excellent production equipment, more than 85% mechanical parts are self-produced by World Press for JH21 Series C type press machine.

From structure buidling to final assembling, JH21 is followed in the highest Japanese JIS1 standard. Compact structure and high-graded configuration ensure reliable working performance and long service life.

FEATURES

Steel welded body, tempering treatment or VSR(Vibratory Stress Relief), high rigidity, accuracy and stability.

Pneumatic dual balance cylinders, which balance the slide and punch weight to reduce noise and impact.

The crankshaft undergoes gringding treatment after high frequency quenching.

Lengthened six-face rectangle guide with a surface of bronze plate.

Vertical located crankshaft, compact structure.

PLC control and imported safety duplex valve.

Wet type combined multi discs friction clutch and brake.

Hydraulic onerload protected.

ELECTRIC INSTALLATION AND SAFETY

The control panel features a switch enabling the user to select the desired type of work in a manual, semi-automatic or automatic position and a switch to select either the fast speed or slow speed. Electrical and hydraulic manoeuvres are redundant and self-controlled. They incorporate an additional safety block and self-control devices for manoeuvre and safety. It includes the verification and certification of the correct operation and the safety distance for the photocells.

Operation is carried out by low voltage electric pedals.

Safety is guaranteed by the use of two lateral protections and with level IV safety light curtains situated at the front.

They allow the installation of a hydraulic cushion or a hydraulic ejector. They are supplied with an instructions manual.

It meets and satisfies all the essential health and safety requirements in accordance with the EC standard.

Technical Parameters

Items Unit APA-15A APA-25A APA-35A APA-45A APA-60A APA-80A APA-110A APA-160A APA-200A APA-260A APA-315A APA-400A
V V H V H V H V H V H V H V H V H V H V H V H
Capacity Ton 15 25 35 45 60 80 110 160 200 260 315 400
Rated Tonnage Point mm 1 3.2 1.6 3.2 1.6 3.2 1.6 4 2 4 2 6 3 6 3 6 3 7 3.5 8 4 8
Stroke of slide mm 60 60 30 70 40 80 50 120 60 150 70 180 80 200 90 200 100 250 150 250 150 300
Stroke/min Variable S.P.M 120-180 60-140 130-200 40-120 110-180 40-100 100-150 35-90 80-120 35-80 80-120 30-60 60-90 20-50 40-70 20-50 50-70 20-40 40-50 20-40 40-50 20-35
Fixed S.P.M 130 110 85 75 65 65 50 35 35 30 30 30
Max Die Height mm 200 200 215 220 235 250 265 310 340 340 380 360 410 460 510 460 510 500 550 500 550 550
Die Height Adjustment mm 50 50 55 60 75 80 80 100 110 120 120 120
Slide Area mm 300×230×50 470×250×50 520×285×50 560×300×60 700×400×70 770×420×70 910×470×80 990×550×90 1130×630×90 1130×700×100 1130×700×100 1050×840×95
Bolster Area mm 680×300×70 680×300×70 800×400×70 850×440×80 900×500×80 1000×550×90 1150×600×110 1250×800×140 1400×820×160 1500×840×180 1500×840×200 1800×950×200
Shank Hole Size mm Ø38.1 Ø38.1 Ø38.1 Ø38.1 Ø50 Ø50 Ø50 Ø65 Ø65 Ø65 Ø65 Ø65
Main Motor KWXP 2.2×6 4×4 4×4 5.5×4 5.5×4 7.5×4 11×4 15×4 18.5×4 22×4 30×4 37×4
Capacity Of  Die cushion Ton 2.3 2.3 3.6 3.6 6.3 10 14 14 14 14
Stroke  Of  Die cushion KW 50 50 70 70 80 80 100 100 100 100
Die Cushion Effective Area Ton 300×230 300×230 350×300 450×310 500×350 650×420 710×480 810×480 810×480 810×480
Air pressure Kg/cm² 6 6 6 6 6 6 6 6 6 6 6 6
Overall Dimensions L×R mm 740 840 900 950 1000 1170 1290 1390 1680 1850 1850 2090
F×B mm 1264 1334 1384 1584 1604 1779 1904 2324 2624 2799 2799 2854
H mm 2098 2179 2348 2525 2808 3040 3224 3600 4058 4430 4450 4615
Prsee Precision GB (JIS) Level 1
5 /5
Based on 3 ratings

Reviewed by 3 users

    • 2 months ago

    Enhancing the user interface and controls for this punching machine could improve the ease of operation and efficiency of the press,good

    • 2 months ago

    JH21-63 Pneumatic Punching Machine is simple to install and easy to operate. After the product is stretched, it has high precision and meets the requirements. KRRASS is a trusted seller!

    • 2 months ago

    The quality of JH21-110T Pneumatic punching machine is very good, and the communication with the professionals is smooth.

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