250cfm 7bar 7m3 Portable Air Compressor

• Customization: Available
• After-sales Service: One Line
• Warranty: 2 Year
• Model NO.: MDS250-7C
• Lubrication Style: Lubricated
• Cooling System: Water Cooling
• Power Source: Diesel Engine
• Cylinder Position: Horizontal
• Structure Type: Closed Type
• Installation Type: Movable Type
• Type: Twin-Screw Compressor
• Engine: Cummins
• Controller: Smartgen
• Rated Power: 75kw
• Function: Construction
• Transport Package: Export Standard Package
• Specification: 3700x2120x2130mm
• Trademark: GTL
• Origin: China
• HS Code: 8414804100
• Production Capacity: 1000 Sets/Year
• Package Size: 3700.00cm * 2120.00cm * 2130.00cm
• Package Gross Weight: 1400.000kg

Product Description

Model						MDS250S-7C
Compressor	Air delivery		m3/min			7
			cu.ft/min			250
	Discharge pressure		bar			7
			psig			101.5
	Lubricating Oil capacity		L			23
Diesel Engine	Manufacture&Model					C-ummins 4BT3.9-C105
	Cylinder Number					4
	Displacement(L)					3.9
	Rotation speed(Rmp)		Operating			2430
			Idle speed(r/min)			1600
	Rated power(KW)					75
	Lubricating Oil capacity(L)					9
	Coolant Capacity(L)					7.9
	Battery					6-QW-80
Others	Dimension		L(mm)			3700
			W(mm)			2120
			H(mm)			2130
	Weight(kg)					1400

Standard Configuration
Suction valve                                     Lubricating oil filter                           Oil thermostatic valve                                             50°C radiator
Solenoid valve                                Vertical air/oil tank                                Pressure regular valve                              Air/oil separator                     
 Lubricating oil radiator       Safety valve                                                   Emergency stop button                                 Air filter of engine
Minimum pressure valve       Lockable battery isolator switch                                                                                                                                                                 
Air filter of compressor        Vent valve                                                       Powder coated canopy                                           Shuttle valve    
24V sealed for life maintenance free battery                                Fuel tank for 8 hours running
Structure diagram

Feature&Benefit
Feature					Benefit
Pressure selection and control					Easy pressure setting
Flow selection and control					The working pressure and airflow rate can be adjusted according to the size of air consumption without wasting any diesel
The twin-screw rotor is directly connected with the diesel engine by a highly flexible coupling					Outputting more air with less energy consumption, featuring high reliability, longer service life, and low maintenance cost.
The two-stage air filtration system					The total efficiency of air filtration reaches 99.8% ensuring the compressor to not be infringed by dust and dirt particles and longer service life of the engine
High-temperature resistance design					Able to run for a long time under extreme cold or hot temperature from -20ºC to 50ºC
One-button start, clear operational parameters					Operators don't have to go through long-term professional training, and unattended operations can be achieved.

Application areas

			Application			Nominal Working Pressure(bar)		Free Air Delivery Range(m3/min)
General Construction (building sites, road maintenance, bridges, tunnels, concrete pumping and shotcreting)			Hand-held pneumatic breakers			7~14		5~13
			Jack hammers
			Air guns
			Shotcrete equipment
			Pneumatic wrenches
			Nut runners
Ground Engineering Drilling  (basement and foundation excavation for apartment blocks and other buildings)			Pneumatic rock drills			7~17		12~28
			Block cutters
			Dewatering pumps.
			Hand-held pneumatic breakers
Utility, Abrasive Blasting (shipyards, steel construction and large renovation jobs)			Sandblasting (remove rust, scale, paint)			7~10		10~22
Blast Hole Drilling (aggregate production for construction stabilization, cement production in limestone quarries and open pit mining)			Rock drills			14~21		12~29
			Dewatering pumps
			Hand-held breakers
High Pressure Drilling (drilling for water wells and foundations for high-rise buildings, along with geotechnical/geothermal applications)			Water well drilling			20~35		18~40

Selection table

Small Series
Small Series	FAD		Pressure		Engine model	Dimensional Date(mm)
	m3/min	cfm	Bar	psig		length		width	height	weight(kg)
model						with tow bar	without tow bar
MDS55S-7	1.55	55	7	101.5	D902	2925	1650	1200	1200	600
MDS80S-7	2.24	80	7	101.5	D1005	2925	1650	1200	1200	630
MDS100S-7	2.8	100	7	101.5	V1505	2925	1650	1200	1200	640
MDS125S-7	3.5	125	7	101.5	V1505	3065	1800	1500	1350	810
MDS130S-8	3.7	132	8	116	JE493	3065	1800	1500	1350	810
MDS185S-7	5.18	185	7	101.5	JE493	3200	1900	1740	1660	950
MDS185S-10	5.18	185	10	145	JE493	3050	1900	1740	1660	950

Middle Series  (Low&Medium pressure)
Middle Series  (Low&Medium pressure)	FAD		Pressure		Engine model	Dimensional Date(mm)
	m3/min	cfm	Bar	psig		length		width	height	weight(kg)
model						with tow bar	without tow bar
MDS265S-7	7.42	265	7	101.5	JE493	3629	2200	1700	1470	1200
MDS300S-14	8.4	300	14	203	4BTA3.9	3850	2600	1810	2378	1800
MDS350S-10	9.9	354	10	145	4BT3.9	3850	2600	1810	2378	1800
MDS390S-7	11	393	7	101.5	4BTA3.9	3850	2600	1810	2378	1800
MDS390S-13	11	393	13	188.5	QSB4.5	3850	3100	1810	2378	1980
MDS429S-7	12	429	7	101.5	4BTA3.9	3850	2600	1810	2378	1800
MDS429S-14	12	429	14	203	QSB4.5	3850	3100	1810	2378	1980
MDS500S-14	14.1	504	14	203	6BTAA5.9	4550	3600	1810	2378	3100
MDS690S-14	19.3	689	14	203	QSB6.7	4950	3300	2170	2620	3500
MDS720S-10	20.2	721	10	145	QSB6.7	4950	3300	2170	2620	3500
MDS750S-12	21	750	12	174	QSB6.7	4950	3300	2170	2620	3500
MDS786S-10.3	22	786	10.3	149.35	QSB6.7	4950	3300	2170	2620	3500
MDS820S-14	23	821	14	203	6LTAA8.9	5300	4200	2170	2630	5200
MDS850S-8.6	24	857	8.6	124.7	6CTAA8.3	5300	4200	2170	2630	4600
MDS900S-7.1	25.3	904	7.1	102.95	6CTA8.3	5300	4200	2170	2630	4600

Middle Series (Medium&High pressure)
Middle Series (Medium&High pressure)	FAD		Pressure		Engine model	Dimensional Date(mm)
	m3/min	cfm	Bar	psig		length		width	height	weight(kg)
model						with tow bar	without tow bar
MDS460S-17	13	464	17	246.5	6BTAA5.9	4600	3500	1800	2230	3500
MDS620S-17	17.4	621	17	246.5	6LTAA8.9	5300	4200	2170	2630	5200
MDS650S-19	18.2	650	19	275.5	QSL8.9	5300	4200	2170	2630	5200
MDS690S-20.4	19.4	693	20.4	295.8	6LTAA8.9	5300	4200	2170	2630	5200
MDS770S-21	21.6	771	21	304.5	6LTAA8.9	5300	4200	2100	2630	5280
MDS830S-18	23.2	830	18	261	6LTAA8.9	5300	4200	2100	2630	5280
MDS820S-25	23	821	25	362.5	QSM11	5300	4200	2100	2630	5600
MDS860S-20.4/17.3	24.2	864	20.4	295.8	QSL8.9	5300	4200	2100	2630	5280
	24.2	864	17.3	250.85
MDS875S-23	24.5	875	23	333.5	QSM11	5300	4200	2100	2630	5600

Large Series    (Low&Medium pressure)
Large Series    (Low&Medium pressure)	FAD		Pressure		Engine model	Dimensional Date(mm)
	m3/min	cfm	Bar	psig		length		width	height	weight(kg)
model						with tow bar	without tow bar
MDS900S-14.2/10.5	25.1	896	14.2	205.9	6LTAA8.9	5300	4200	2100	2630	5280
	25.2	900	10.5	152.25
MDS910S-14	25.6	914	14	203	6LTAA8.9	5300	4200	2100	2630	5280
MDS970S-10	27.2	971	10	145	QSL8.9	5300	4200	2100	2630	5280
MDS1011S-8.6	28.3	1011	8.6	124.7	QSL8.9	5300	4200	2100	2630	5280
MDS1054S-12	29.5	1054	12	174	QSL8.9	5300	4200	2100	2630	5280
MDS1250S-8.6	35	1250	8.6	124.7	QSL8.9	5300	4200	2100	2630	5280
MDS1400S-13	40	1400	13	188.5	QSZ13	6200	4700	2100	2630	5800
MDS1600S-10.3	45	1600	10.3	149.35	QSZ13	6200	4700	2100	2630	5800
MDS1785S-13	50	1785	13	188.5	QSZ13	6200	4700	2100	2630	5800
MDS2140S-10	60	2142	10	145	QSZ14	7400	5400	2230	2630	8400

Large Series    (Medium&High pressure)
Large Series    (Medium&High pressure)	FAD		Pressure		Engine model	Dimensional Date(mm)
	m3/min	cfm	Bar	psig		length		width	height
model						with tow bar	without tow bar
MDS900S-20	25.3	904	20	290	QSM11	5300	4200	2100	2630
MDS960S-18	26.9	961	18	261	QSM11	5300	4200	2100	2630
MDS1000S-35	28.2	1000	35	507.5	QSZ13	6200	4700	2100	2630
MDS1089S-25	30.5	1089	25	362.5	QSZ13	6200	4700	2100	2630
MDS1200S-24	33.6	1200	24	348	QSZ13	6200	4700	2100	2630
MDS1250S-21	35	1250	21	304.5	QSZ13	6200	4700	2100	2630
MDS1250S-25	35	1250	25	362.5	QSZ13	6200	4700	2100	2630
MDS1250S-30	35	1250	30	435	WP17G770E302	6200	4700	2100	2630
MDS1250S-35	35	1250	35	507.5	WP17G770E302	6200	4700	2100	2630
MDS1250S-40	35	1250	40	580	WP17G770E302	6200	4700	2100	2630
MDS1428S-18	40	1428	18	261	QSZ13	6200	4700	2100	2630
MDS1428S-35	40	1428	35	507.5	TAD1643VE-B	7400	5500	2180	2650
MDS1428S-40	40	1428	40	580	QSK19	7400	5500	2180	2650
MDS1600S-25	44.8	1600	25	362.5	WP17G770E302	7400	5500	2180	2650