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Wide Single Knuckle Joint Press

JNKJ-W Series

JNKJ-250W / 400W / 500W / 800W / 1000W

Knuckle joint presses operate with a knuckle mechanism for slide driving and operate very slowly in the vicinity of bottom dead center with a unique motion curve and are suitable for precision machining.
The JNKJ-W series is a zero clearance slide adjustment device for heavy plate blanking and necking, embossing.
It is a special grade knuckle press which is specially designed to maintain optimum precision in machining such as burring.

Feature

At the point of tonnage rating, it keeps pressing to optimize forging productions as well as the cut-face is very excellent.

▪ HIGH STRENGTH FRAME : It is designed strong enough to stand concerated stress on the center of frame when compressing
▪ USE SPECIAL MEDAL ON THE LINK PART: It is guaranted for long life expentacny by using specialized-alloy-metal
▪ LOCKING DEVICE: Zero clearance of locking device to realize the zero clearance on the part of slide adjust
▪ EXTERNAL TYPE OF AIR CLUTCH BREAK: It is easy maintenance as outer-mounted air cluth
▪ AUTO LUBRICATION OR OIL FEEDING: It feeds proper oil or lubrication to PRESS at the same time PRESS operates.
▪ LOWER KNOCK: There are four (4) types of knock outs like Mechanical, Hydraulic and Pneumatic type. (It is optional as customers’ request)

Specification

CLASSIFICATION CAPACITY(Ton) STROKE(mm) S.P.M DIE HEIGHT(mm) SLIDE ADJUST(mm) BED AREA(mm) SLIDE AREA(mm) MAIN MOTOR(kw)
JNKJ-250W 250 120 40~50 450 15 1300x600 1300x700 15x4
JNKJ-400W 400 160 30~40 450 15 1300x800 1400x800 30x4
JNKJ-500W 500 200 30~40 500 15 1400x900 1500x900 37x4
JNKJ-650W 650 250 25~35 600 15 1400x900 1400x900 37x4
JNKJ-800W 800 250 20~30 700 15 1500x900 1500x900 55x4