Knuckle boom crane JTK255

1. 4-link HC on-car multi-way valve group, two sets of four-link rod system, more stable lifting characteristics.

2. Reducer drive rotation mechanism; telescopic boom cylinder with sequence valve.

3. The main steel structure is made of 1100 and 960 grade high-strength steel.

4.Unique decagonal boom cross-section patented technology, and equipped with oil cooler.

Description
Inquiry

The JTK255 is a lightweight and agile knuckle boom crane engineered for urban logistics and utility applications. It delivers a maximum lifting moment of 244kNm and a working range of 12.45m, all while maintaining a compact crane weight of just 3500kg. The main steel structure is constructed from 1100 and 960 grade high-strength steel, featuring a unique decagonal boom cross-section patented technology for enhanced strength and longevity.

Product Parameter
Item	Unit	JTK255-4S
Max Lifting Moment	kNm	244
Max Working Range	m	12.45
First-Arm Angle(Max Moment)	°	20
EN12999 Working Type		H1-B3
Max Dynamic Load Moment	kNm	324
Slewing Moment	kNm	22
Max Off-Load Angle	°	5
Slewing Angle	°	360
Outtrigger Span	mm	6000
Max.support reaction of landing gear	kN	130
Max Flow of Main Valve	1/min	60
Max Pressure of Main Valve	Mpa	34
Minimun Power Required	kW	52
Oil Tank Capacity	L	180
Input Voltage	V	24/12DC
Crane Weight	Kg	3500
Crane Height	m	2.330
Crane Width	m	2.500
Hydraulic oil weight	Kg	160
Amount of Tie Rods		8
Tie Rods Size		M27X2
Material of Tie Rods		42CrMo Slack quench
Tightening torque of Tie Rod	Nm	600

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