Permanent Magnet Variable Frequency Screw Air Compressor

ULPPRO is a Chinese manufacturer, offers the Permanent Magnet Variable Frequency Screw Air Compressor, the permanent magnet motor is manufactured using high-performance rare earth permanent magnet materials. Compared with conventional variable frequency screw compressors, it offers a wider frequency range of 25–100%, higher motor efficiency, and energy savings of up to 35%, delivering significant energy-saving effects. The variable frequency synchronous motor features high power factor, high efficiency, simple structure, reliable operation, unique design, and long service life.

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Product Description

Advantage and structure feature

Air End

Screw rotor profile design patent: ZL94 1 12198.4
Design of air end pressure: 0.3MPa~1.80MPa
Air end volume efficiency of compression: ≥ 95%
Rotor diameter and center distance: Large
Low power consumption: the level of energy efficiency index 1
Direct driven: transmission ratio 1:1
low noise
Rotor material: special carbon steel SAE1141
Air end bearing: imported SKF brand
Working temperature is up to 110 degrees under the continue running conditions

Intelligent Control

RS485 communication mode transmission control signa
Intelligent PID flow regulation mode
Closed loop control, with ideal dynamic characteristics and control precision
Accurately controlled torque
Fast system response speed, good acceleration and deceleration characteristic
Constant pressure control, avoid generation exceed energy losses

Vectorial Inverter

High utilization rate, panel disassembly, switching use, memory function
Perfect protection: phase loss, phase-to-phase short circuit, short circuit to ground, over current, over voltage, under voltage, overload, and overheating can be realized
Motor thermal protection circuit board enhanced coating, dustproof and anti-corrosion;
The system has low heat generation, powerful overload capability and unique current limiting technology
Proprietary and efficient control program
Ultra-wide frequency design and wider range of control

Inlet Valve

High vacuum degree: 700mmHg

Large suction area

Low load energy consumption in unloaded operation

Fast check: prevent unloading and shutdown oil injection

Solenoid valve: Italy ODE brand

Valve seal: fluorine rubber material

Integrated design, low failure and maintenance rate

Cast aluminum, avoid rusting and deformation affected by temperature.

Features of permanent magnet variable frequency air compressors

1. Ultra-low temperature lift design, compressor allows for stable operation of low frequency

2. Adopt closed-loop vector control system, PID adjustment is more accurate and stable

3. When the operating frequency is above 50%, the overall compressor system still maintains high volumetric efficiency

4. Stable startup, gentle acceleration, avoid current peak impact, and the power grid is protected from impact and overload startup

5. Precise voltage regulation, achieve target pressure fluctuation within 0.01MPa, reduce unnecessary energy loss. Pressure increases 0.1MPa, the electricity consumption rises by 6%.

Technical parameters for Permanent Magnet Variable Frequency Screw Air Compressor

Model	Power		Rated Pressure		Free Air Delivery			Weight		Dimension			Outlet size
	Power		Rated Pressure		Free Air Delivery			Weight		L	W	H	Outlet size
	kW	hp	bar	psig	l/s	m³/min	cfm	kg	lb	mm	mm	mm	inch/mm
ULP-08A	7.5	10	7	102	21	1.25	44	180	397	850	600	800	G1/2
ULP-08A	7.5	10	8	116	21	1.23	43	180	397	850	600	800	G1/2
ULP-08A	7.5	10	10	145	18	1.1	39	180	397	850	600	800	G1/2
ULP-08A	7.5	10	13	189	17	1.03	36	180	397	850	600	800	G1/2
ULP-11A	11	15	7	102	28	1.7	60	260	573	1050	700	950	G3/4
ULP-11A	11	15	8	116	28	1.65	58	260	573	1050	700	950	G3/4
ULP-11A	11	15	10	145	25	1.47	52	260	573	1050	700	950	G3/4
ULP-11A	11	15	13	189	21	1.25	44	260	573	1050	700	950	G3/4
ULP-15A	15	20	7	102	45	2.7	95	280	617	1050	700	950	G3/4
ULP-15A	15	20	8	116	42	2.5	88	280	617	1050	700	950	G3/4
ULP-15A	15	20	10	145	38	2.3	81	280	617	1050	700	950	G3/4
ULP-15A	15	20	13	189	32	1.9	67	280	617	1050	700	950	G3/4
ULP-18A	18.5	25	7	102	53	3.2	113	330	728	1200	900	1150	G1¼
ULP-18A	18.5	25	8	116	50	3	106	330	728	1200	900	1150	G1¼
ULP-18A	18.5	25	10	145	47	2.8	99	330	728	1200	900	1150	G1¼
ULP-18A	18.5	25	13	189	38	2.3	81	330	728	1200	900	1150	G1¼
ULP-22A	22	30	7	102	60	3.6	127	350	772	1200	900	1150	G1¼
ULP-22A	22	30	8	116	58	3.5	124	350	772	1200	900	1150	G1¼
ULP-22A	22	30	10	145	50	3	106	350	772	1200	900	1150	G1¼
ULP-22A	22	30	13	189	48	2.9	102	350	772	1200	900	1150	G1¼
ULP-30A	30	45	7	102	88	5.3	187	450	992	1200	900	1150	G1¼
ULP-30A	30	45	8	116	87	5.2	184	450	992	1200	900	1150	G1¼
ULP-30A	30	45	10	145	83	5	177	450	992	1200	900	1150	G1¼
ULP-30A	30	45	13	189	58	3.5	124	450	992	1200	900	1150	G1¼
ULP-37A	37	50	7	102	107	6.4	226	500	1102	1350	1000	1250	G1½
ULP-37A	37	50	8	116	105	6.3	222	500	1102	1350	1000	1250	G1½
ULP-37A	37	50	10	145	93	5.6	198	500	1102	1350	1000	1250	G1½
ULP-37A	37	50	13	189	83	5	177	500	1102	1350	1000	1250	G1½
ULP-45A	45	60	7	102	123	7.4	261	650	1433	1500	1050	1350	G2
ULP-45A	45	60	8	116	122	7.3	258	650	1433	1500	1050	1350	G2
ULP-45A	45	60	10	145	105	6.3	222	650	1433	1500	1050	1350	G2
ULP-45A	45	60	13	189	87	5.2	184	650	1433	1500	1050	1350	G2
ULP-55A	55	75	7	102	155	9.3	328	930	2050	1700	1200	1450	G2
ULP-55A	55	75	8	116	153	9.2	325	930	2050	1700	1200	1450	G2
ULP-55A	55	75	10	145	152	9.1	321	930	2050	1700	1200	1450	G2
ULP-55A	55	75	13	189	125	7.5	265	930	2050	1700	1200	1450	G2
ULP-75A	75	100	7	102	225	13.5	477	1100	2425	1700	1200	1500	G2
ULP-75A	75	100	8	116	203	12.2	431	1100	2425	1700	1200	1500	G2
ULP-75A	75	100	10	145	180	10.8	381	1100	2425	1700	1200	1500	G2
ULP-75A	75	100	13	189	158	9.5	335	1100	2425	1700	1200	1500	G2
ULP-90A	90	125	7	102	260	15.6	551	1800	3968	2100	1300	1650	G2
ULP-90A	90	125	8	116	258	15.5	547	1800	3968	2100	1300	1650	G2
ULP-90A	90	125	10	145	242	14.5	512	1800	3968	2100	1300	1650	G2
ULP-90A	90	125	13	189	217	13	459	1800	3968	2100	1300	1650	G2

Model	Power		Rated Pressure		Free Air Delivery			Weight		Dimension			Outlet size
	Power		Rated Pressure		Free Air Delivery			Weight		L	W	H	Outlet size
	kW	hp	bar	psig	l/s	m³/min	cfm	kg	lb	mm	mm	mm	inch/mm
ULP-110AV	110	150	7	102	347	20.8	734	1950	4299	2450	1700	1900	DN65
ULP-110AV	110	150	8	116	333	20	706	1950	4299	2450	1700	1900	DN65
ULP-110AV	110	150	10	145	292	17.5	618	1950	4299	2450	1700	1900	DN65
ULP-110AV	110	150	13	189	242	14.5	512	1950	4299	2450	1700	1900	DN65
ULP-132AV	132	175	7	102	400	24	847	2000	4409	2500	1700	1900	DN65
ULP-132AV	132	175	8	116	383	23	812	2000	4409	2500	1700	1900	DN65
ULP-132AV	132	175	10	145	350	21	741	2000	4409	2500	1700	1900	DN65
ULP-132AV	132	175	13	189	283	17	600	2000	4409	2500	1700	1900	DN65
ULP-160AV	160	215	7	102	467	28	988	3100	6834	3000	1800	1900	DN80
ULP-160AV	160	215	8	116	458	27.5	971	3100	6834	3000	1800	1900	DN80
ULP-160AV	160	215	10	145	417	25	883	3100	6834	3000	1800	1900	DN80
ULP-160AV	160	215	13	189	333	20	706	3100	6834	3000	1800	1900	DN80
ULP-185AV	185	250	7	102	517	31	1094	3300	7275	3000	1800	1900	DN80
ULP-185AV	185	250	8	116	500	30	1059	3300	7275	3000	1800	1900	DN80
ULP-185AV	185	250	10	145	450	27	953	3300	7275	3000	1800	1900	DN80
ULP-185AV	185	250	13	189	375	22.5	794	3300	7275	3000	1800	1900	DN80
ULP-200AV	200	270	7	102	572	34.3	1211	3950	8708	3200	2100	2250	DN100
ULP-200AV	200	270	8	116	547	32.8	1158	3950	8708	3200	2100	2250	DN100
ULP-200AV	200	270	10	145	517	31	1094	3950	8708	3200	2100	2250	DN100
ULP-200AV	200	270	13	189	442	26.5	935	3950	8708	3200	2100	2250	DN100
ULP-220AV	220	300	7	102	637	38.2	1348	4500	9921	3500	2100	2250	DN100
ULP-220AV	220	300	8	116	563	33.8	1193	4500	9921	3500	2100	2250	DN100
ULP-220AV	220	300	10	145	523	31.4	1108	4500	9921	3500	2100	2250	DN100
ULP-220AV	220	300	13	189	477	28.6	1010	4500	9921	3500	2100	2250	DN100
ULP-250AV	250	340	7	102	738	44.3	1564	5100	11243	3500	2300	2400	DN100
ULP-250AV	250	340	8	116	700	42	1483	5100	11243	3500	2300	2400	DN100
ULP-250AV	250	340	10	145	620	37.2	1313	5100	11243	3500	2300	2400	DN100
ULP-250AV	250	340	13	189	542	32.5	1147	5100	11243	3500	2300	2400	DN100
ULP-280AV	280	380	7	102	773	46.4	1638	6200	13669	3500	2300	2700	DN125
ULP-280AV	280	380	8	116	770	46.2	1631	6200	13669	3500	2300	2700	DN125
ULP-280AV	280	380	10	145	682	40.9	1444	6200	13669	3500	2300	2700	DN125
ULP-280AV	280	380	13	189	598	35.9	1267	6200	13669	3500	2300	2700	DN125
ULP-315AV	315	425	7	102	850	51	1800	6800	14991	4000	2400	2300	DN125
ULP-315AV	315	425	8	116	834	50	1765	6800	14991	4000	2400	2300	DN125
ULP-315AV	315	425	10	145	750	45	1589	6800	14991	4000	2400	2300	DN125
ULP-315AV	315	425	13	189	650	39	1377	6800	14991	4000	2400	2300	DN125

Technical parameters for Fixed-speed Screw Air Compressor

Model	Power		Rated Pressure		Free Air Delivery			Weight		Dimension			Outlet size
	Power		Rated Pressure		Free Air Delivery			Weight		L	W	H	Outlet size
	kW	hp	bar	psig	l/s	m³/min	cfm	kg	lb	mm	mm	mm	inch/mm
ULP-08A	7.5	10	7	102	21	1.25	44	180	397	850	600	800	G1/2
ULP-08A	7.5	10	8	116	21	1.23	43	180	397	850	600	800	G1/2
ULP-08A	7.5	10	10	145	18	1.1	39	180	397	850	600	800	G1/2
ULP-08A	7.5	10	13	189	17	1.03	36	180	397	850	600	800	G1/2
ULP-11A	11	15	7	102	28	1.7	60	260	573	1050	700	950	G3/4
ULP-11A	11	15	8	116	28	1.65	58	260	573	1050	700	950	G3/4
ULP-11A	11	15	10	145	25	1.47	52	260	573	1050	700	950	G3/4
ULP-11A	11	15	13	189	21	1.25	44	260	573	1050	700	950	G3/4
ULP-15A	15	20	7	102	45	2.7	95	280	617	1050	700	950	G3/4
ULP-15A	15	20	8	116	42	2.5	88	280	617	1050	700	950	G3/4
ULP-15A	15	20	10	145	38	2.3	81	280	617	1050	700	950	G3/4
ULP-15A	15	20	13	189	32	1.9	67	280	617	1050	700	950	G3/4
ULP-18A	19	25	7	102	53	3.2	113	330	728	1200	900	1150	G11/4
ULP-18A	19	25	8	116	50	3	106	330	728	1200	900	1150	G11/4
ULP-18A	19	25	10	145	47	2.8	99	330	728	1200	900	1150	G11/4
ULP-18A	19	25	13	189	38	2.3	81	330	728	1200	900	1150	G11/4
ULP-22A	22	30	7	102	60	3.6	127	350	772	1200	900	1150	G11/4
ULP-22A	22	30	8	116	58	3.5	124	350	772	1200	900	1150	G11/4
ULP-22A	22	30	10	145	50	3	106	350	772	1200	900	1150	G11/4
ULP-22A	22	30	13	189	48	2.9	102	350	772	1200	900	1150	G11/4
ULP-30A	30	45	7	102	88	5.3	187	450	992	1200	900	1150	G11/4
ULP-30A	30	45	8	116	87	5.2	184	450	992	1200	900	1150	G11/4
ULP-30A	30	45	10	145	83	5	177	450	992	1200	900	1150	G11/4
ULP-30A	30	45	13	189	58	3.5	124	450	992	1200	900	1150	G11/4
ULP-37A	37	50	7	102	107	6.4	226	500	1102	1350	1000	1250	G11/2
ULP-37A	37	50	8	116	105	6.3	222	500	1102	1350	1000	1250	G11/2
ULP-37A	37	50	10	145	93	5.6	198	500	1102	1350	1000	1250	G11/2
ULP-37A	37	50	13	189	83	5	177	500	1102	1350	1000	1250	G11/2
ULP-45A	45	60	7	102	123	7.4	261	650	1433	1500	1050	1350	G2
ULP-45A	45	60	8	116	122	7.3	258	650	1433	1500	1050	1350	G2
ULP-45A	45	60	10	145	105	6.3	222	650	1433	1500	1050	1350	G2
ULP-45A	45	60	13	189	87	5.2	184	650	1433	1500	1050	1350	G2
ULP-55A	55	75	7	102	155	9.3	328	930	2050	1700	1200	1450	G2
ULP-55A	55	75	8	116	153	9.2	325	930	2050	1700	1200	1450	G2
ULP-55A	55	75	10	145	152	9.1	321	930	2050	1700	1200	1450	G2
ULP-55A	55	75	13	189	125	7.5	265	930	2050	1700	1200	1450	G2
ULP-75A	75	100	7	102	225	13.5	477	1100	2425	1700	1200	1500	G2
ULP-75A	75	100	8	116	203	12.2	431	1100	2425	1700	1200	1500	G2
ULP-75A	75	100	10	145	180	10.8	381	1100	2425	1700	1200	1500	G2
ULP-75A	75	100	13	189	158	9.5	335	1100	2425	1700	1200	1500	G2
ULP-90A	90	125	7	102	250	15.6	551	1800	3968	2100	1300	1650	G2
ULP-90A	90	125	8	116	258	15.5	547	1800	3968	2100	1300	1650	G2
ULP-90A	90	125	10	145	242	14.5	512	1800	3968	2100	1300	1650	G2
ULP-90A	90	125	13	189	217	13	459	1800	3968	2100	1300	1650	G2

Model	Power		Rated Pressure		Free Air Delivery			Weight		Dimension			Outlet size
	Power		Rated Pressure		Free Air Delivery			Weight		L	W	H	Outlet size
	kW	hp	bar	psig	l/s	m³/min	cfm	kg	lb	mm	mm	mm	inch/mm
ULP-110A	110	150	7	102	327	19.6	692	2150	4740	2450	1700	1900	DN65
ULP-110A	110	150	8	116	325	19.5	688	2150	4740	2450	1700	1900	DN65
ULP-110A	110	150	10	145	273	16.4	579	2150	4740	2450	1700	1900	DN65
ULP-110A	110	150	13	189	233	14	494	2150	4740	2450	1700	1900	DN65
ULP-132A	132	175	7	102	383	23	812	2250	4960	2500	1700	1900	DN65
ULP-132A	132	175	8	116	375	22.5	794	2250	4960	2500	1700	1900	DN65
ULP-132A	132	175	10	145	318	19.1	674	2250	4960	2500	1700	1900	DN65
ULP-132A	132	175	13	189	255	15.3	540	2250	4960	2500	1700	1900	DN65
ULP-160A	160	215	7	102	453	27.2	960	3250	7165	3000	1800	1900	DN80
ULP-160A	160	215	8	116	452	27.1	957	3250	7165	3000	1800	1900	DN80
ULP-160A	160	215	10	145	375	22.5	794	3250	7165	3000	1800	1900	DN80
ULP-160A	160	215	13	189	317	19	671	3250	7165	3000	1800	1900	DN80
ULP-185A	185	250	7	102	508	30.5	1077	3450	7606	3000	1800	1900	DN80
ULP-185A	185	250	8	116	500	30	1059	3450	7606	3000	1800	1900	DN80
ULP-185A	185	250	10	145	450	27	953	3450	7606	3000	1800	1900	DN80
ULP-185A	185	250	13	189	375	22.5	794	3450	7606	3000	1800	1900	DN80
ULP-200A	200	270	7	102	572	34.3	1211	3850	8488	3200	2100	2250	DN100
ULP-200A	200	270	8	116	547	32.8	1158	3850	8488	3200	2100	2250	DN100
ULP-200A	200	270	10	145	517	31	1094	3850	8488	3200	2100	2250	DN100
ULP-200A	200	270	13	189	442	26.5	935	3850	8488	3200	2100	2250	DN100
ULP-220A	220	300	7	102	570	34.2	1207	4450	9810	3500	2100	2250	DN100
ULP-220A	220	300	8	116	563	33.8	1193	4450	9810	3500	2100	2250	DN100
ULP-220A	220	300	10	145	517	31	1094	4450	9810	3500	2100	2250	DN100
ULP-220A	220	300	13	189	477	28.6	1010	4450	9810	3500	2100	2250	DN100
ULP-250A	250	340	7	102	692	41.5	1465	5150	11354	3500	2300	2400	DN100
ULP-250A	250	340	8	116	683	41	1447	5150	11354	3500	2300	2400	DN100
ULP-250A	250	340	10	145	570	34.2	1207	5150	11354	3500	2300	2400	DN100
ULP-250A	250	340	13	189	517	31	1094	5150	11354	3500	2300	2400	DN100
ULP-280A	280	380	7	102	859	51.5	1818	6000	13228	3500	2300	2700	DN125
ULP-280A	280	380	8	116	837	50.2	1772	6000	13228	3500	2300	2700	DN125
ULP-280A	280	380	10	145	700	42	1483	6000	13228	3500	2300	2700	DN125
ULP-280A	280	380	13	189	633	38	1341	6000	13228	3500	2300	2700	DN125
ULP-315A	315	425	7	102	930	55.8	1970	7600	16755	4000	2400	2300	DN125
ULP-315A	315	425	8	116	917	55	1942	7600	16755	4000	2400	2300	DN125
ULP-315A	315	425	10	145	817	49	1730	7600	16755	4000	2400	2300	DN125
ULP-315A	315	425	13	189	683	41	1447	7600	16755	4000	2400	2300	DN125
ULP-355A	355	426	7	102	1110	66.6	2351	8350	18408	4000	2400	2300	DN150
ULP-355A	355	426	8	116	1084	65	2295	8350	18408	4000	2400	2300	DN150
ULP-355A	355	426	10	145	1004	60.2	2125	8350	18408	4000	2400	2300	DN150
ULP-355A	355	426	13	189	942	56.5	1994	8350	18408	4000	2400	2300	DN150
ULP-400A	400	427	7	102	1195	71.7	2530	8700	19180	4000	2400	2300	DN150
ULP-400A	400	427	8	116	1177	70.6	2492	8700	19180	4000	2400	2300	DN150
ULP-400A	400	427	10	145	1097	65.8	2323	8700	19180	4000	2400	2300	DN150
ULP-400A	400	427	13	189	1027	61.6	2174	8700	19180	4000	2400	2300	DN150