Basic Info.

Model NO.	SP70Y
Transmission	Power Transmission
Walking Mode	Crawler
Load and Unload Method	Front Discharge
Engine Power	<74kw
Certification	CE, ISO9001: 2000
Condition	New
Color	Yellow
Transport Package	Nude
Specification	4252*2680*2760mm
Trademark	chinese brand
Origin	China
HS Code	8429119000

Product Description

Chinese Durable Pipelayers 70 Ton Pipelayers SP70Y

The double pump confluence system with unloading function can automatically or manually switch over the individual pump based on the working condition and unload the high pressure by auxiliary pump, featuring high intelligence and energy-saving.The Factory's independently developed load-sensing system features smooth digging and loading combination motions, low motion changeover impact, and high efficiency and energy-saving.During the digging and loading combination operations, the engine power to the drive system can be easily cut off so that all power is supplied to the hydraulic system to improve the digging and loading efficiency.The machine automatically switches to two-wheel drive mode while traveling in gear IV to eliminate the parasitic power loss.

• company name : Tewrex
• Suzhou subsidiary Address: Room 602, Building 2, Tiandu Building, No.211 Changjiang Road, High-tech Zone, Suzhou City

Product	SP70Y
Performance parameters
Operating weight (Kg)	47500
Maximum lifting capacity(T)	70
Rated power of engine(kw/hp)	257
Minimum turning radius (mm)	3950
Ground pressure (Mpa)	0.086
Engine
Engine model	NTA855-C360S10
Number of cylinders× cylinder diameter× stroke(mm×mm)	6-139.7x152.4
Rated power/rated speed (kw/rpm)	257/2000
Maximum torque (N.m/r/min)	1509/1400
Overall dimensions of machine
Length (mm)	5560
Width (mm)	3940
Height (mm)	3395
Driving performance
Forward gear 1/Reverse gear 1 (km/h)	0-3.7/0-4.5
Forward gear 2/Reverse gear 2 (km/h)	0-6.8/0-8.2
Forward gear 3/Reverse gear 3 (km/h)	0-11.5/0-13.5
Traveling system
Hydraulic torque converter	Three-element single-stage and single phase
Transmission	Planetary gear, multi-plate clutch, and hydraulic + forced lubrication type
Main drive	Spiral bevel gear, one-stage deceleration and splash lubrication
Steering clutch	Wet type, multi-plate spring applied, hydraulically released, and manually-hydraulically operated
Steering brake	Wet type, floating belt type, and hydraulically assisted
Final drive	Two-stage straight gear reducer and splash lubrication
Chassis System
Suspension mode	Rigid crossbeam structure
Center distance of track (mm)	2380
Width of track shoes (mm)	760
Ground length (mm)	3620
Number of track shoes (One-sided/piece)	45
Chain track pitch(mm)	228
Number of carrier rollers (One-sided)	2
Number of track rollers (One-sided)	9
Working hydraulic system
Working pump	Fixed displacement gear pump, with maximum displacement at 201.5ml/r
Pilot pump	Fixed displacement gear pump, with maximum displacement at 10ml/r
Operating valve	Proportion multi-way valve
Counterweight cylinder bore(mm)	φ125
Tank capacity
Fuel tank (L)	550
Working hydraulic oil tank (L)	400
Working device
Maximum lifting height(mm)	6550
Hook lifting speed m/min	0~6.5
Boom length (m)	7.3 (Optional 9.0)