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Rotary Drilling Rig Series

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Rotary Drilling Rig

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Remaunfacture rigs

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HR250

Product serial number

Rated power（KW）：257 Maximum output torque（KN·M）：250

Brief description:

Call 0750-8218666

Product description

Parameters

Parameter

Performance characteristics

◆ The design and technology of rotary drilling rigs have absorbed the advantages of domestic and foreign famous brand products. The main performance parameters have reached and exceeded the level of similar domestic products. The key components are from all international famous brand products, ensuring the reliability of the whole machine.

◆ The power head of the rotary drilling rig adopts Rexroth 160 dual motors, and it has a gear into the rock, which greatly improves the drilling efficiency.

◆ The rotary drilling rig can be equipped with short auger bits, ordinary drill buckets, sand buckets and other drilling tools. It can be drilled into clay layers, gravel layers, pebble layers and weathered mudstones. Barrel drills and roller cone drills can be used Drilling in the slightly weathered formation.

◆ The rotary drilling rig is equipped with auxiliary legs of the lower mast, which can facilitate the contraction of the crawler and the use of the lower casing of the customer.

Working size

Transport size

The main technical parameters

Name		Unit	Parameter value
Maximum Drilling diameter		mm	2000
Maximum Drilling depth		m	70（6X13.5Friction rod）
Working rig size (length × width × height)		mm	9820×4400×21700
Transport rig size (length × width × height)		mm	16000×3500×3500
Machine weight (standard drill pipe, no drill bit)		t	79
Engine	Model	/	CUMMINS QSM11-C350
	Rated power / speed	kW	257 /（2100r/min）
	Fuel tank volume	L	460
	Meet emission standards	/	U.S.EPA Tier3 CARB Tier3 EU.Stage ⅢA
Hydraulic system	Maximum working pressure of main pump	Mpa	34.5
	Maximum working pressure of auxiliary pump	Mpa	30
	Hydraulic main pump	/	Kawasaki
	Flow rate (main circuit + auxiliary circuit)	L/min	2x294L/min+1x149L/min
	Hydraulic oil tank volume	L	700L
Power Head	Rated torque of power head	kN.m	250
Power Head	Speed of power head	rpm	7～24
Pressurized cylinder	Maximum pressure of pressurized cylinder	kN	210
	Maximum lifting force of pressurized cylinder	kN	220
	Pressurized cylinder stroke	mm	5300
Main winch	Main hoisting lift	kN	280
	Maximum single rope speed of main hoist	m/min	60
	Main winding wire rope diameter	mm	32
	Wire rope model		32 NAT 35（W）xK7+1960 ZS
	Allowable diameter error of wire rope		+2％~＋4％
	Wire rope length	m	105m（Standard configuration to meet 70 meters drilling depth）
Deputy winch	Vice winch lifting force	kN	80
	Maximum single rope speed of auxiliary winch	m/min	65
	Vice hoisting wire rope diameter	mm	20
	Wire rope model	/	20 NAT6x19W+IWS1770ZS
	Allowable diameter error of wire rope	/	+2％~＋4％
	Wire rope length	m	70
Drill mast	Mast left / right inclination	°	3（5） / 3（5）
Drill mast	Forward mast angle	°	5
Walk	Maximum walking speed of the whole machine	km/h	1.5
Walk	The maximum climbing degree of the whole machine	%	35
Track	Track width	mm	800
	Track width (min-max)	mm	3500～4400
	Track width (min-max)	mm	4700
	Average ground pressure	KPa	102
	Number of rollers	PCS	2x10PCS
Kelly bar	Drill pipe diameter	mm	Φ440
	Drilling diameter	mm	Φ2000
	Square head size	mm	200*200
	Drilling depth	M	70

Note: Houji Heavy Industries follows the principle of continuous technical update, and product parameters are subject to the actual purchased model parameters without prior notice.