4-Fan Industrial Unit Cooler Ultra-Low Temp Solutions for Laboratory Storage

4-Fan Industrial Unit Cooler Ultra-Low Temp Solutions for Laboratory Storage

Product Series:

XL series

Order(MOQ):

Power Supply:

3P/380V/50Hz (Accept customization)

Operating Temperature:

-20℃～-40℃

Refrigerant:

R404A, R507A, R448A, R449A, R134A, R22

Payment:

EX-WORK, FOB, CIF, DDP

Shipping Port:

Shenzhen, Guangzhou, Qingdao

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Product Description

Casing:High-quality galvanized steel with powder coating, excellent corrosion resistance; side panels secured with screws for tight sealing.

Double Water Pan:Angled diamond outer pan for smooth, residue-free drainage; aluminum trough inner pan.

Coils:Ø9.52mm internally grooved copper tubes, 36x31.18 inverted delta arrangement for large heat transfer area and small temperature difference.

Fins:Hydrophilic corrugated aluminum fins with 4.5mm, 6.0mm, and 9.0mm fin spacing to meet various temperature and humidity requirements.

Fan Cowl:Integrated large arc design for good airflow, long throw, and low noise.

Fans:High-power external rotor fans, operating temperature -20℃ to -40℃; available in Ø350, Ø400, and Ø450 sizes.

Defrost:Standard electric defrost with stainless steel heating tubes evenly distributed in coil fins and inner water pan; independent heating tube junction box. Optional accessories like expansion valves and fan ring heating belts are available upon request.

Refrigerants:Compatible with R404A, R507A, R448A, R449A, R134A, R22, etc.

Product Parameters

Model	Refrigeration Capacity/R404A(KW)		Area (m²)	Tube Volume (dm³)	Air Volume (m³/h)	Range (m)	Interface Specifications			Weight (kg)
Model	Tc=0℃ △T=8K	Tc=-18℃ △T=7K	Area (m²)	Tube Volume (dm³)	Air Volume (m³/h)	Range (m)	Feed Liquor	Return Air	Drainage	Weight (kg)
350 Fan Series
XL2.0/351MB	2.0	1.6	10.8	1.7	2300	7	Φ12.7	Φ19	G1"	34
XL2.6/351MB	2.6	2.0	16.2	2.5	2000	7	Φ12.7	Φ19	G1"	36
XL3.9/352MB	3.9	3.0	21.6	3.4	4600	8	Φ12.7	Φ19	G1"	54
XL5.4/352MB	5.4	4.2	32.4	5.1	4000	8	Φ12.7	Φ22	G1"	60
XL6.0/353MB	6.0	4.7	32.4	5.1	6900	9	Φ12.7	Φ22	G1"	75
XL8.1/353MB	8.1	6.3	48.6	7.6	6000	9	Φ12.7	Φ22	G1"	83
XL8.1/354MB	8.1	6.3	43.2	6.7	9200	10	Φ12.7	Φ22	G1"	96
XL10.6/354MB	10.6	8.3	64.8	10.1	8000	10	Φ16	Φ28	G1"	106
450 Fan Series
XL4.5/451MA	4.5	3.5	25.3	3.9	4300	12	Φ12.7	Φ22	G1"	50
XL5.4/451MA	5.4	4.2	33.7	5.3	3900	12	Φ12.7	Φ22	G1"	55
XL9.1/452MA	9.1	7.1	50.5	7.9	8600	13	Φ16	Φ28	G1"	84
XL10.8/452MA	10.8	8.4	67.4	10.5	7800	13	Φ16	Φ28	G1"	93
XL14.0/453MA	14.0	10.9	77.6	11.8	12900	14	Φ22	Φ35	2G1"	120
XL16.6/453MA	16.6	12.9	107.6	15.8	11700	14	Φ22	Φ35	2G1"	133
XL18.2/454MA	18.2	14.2	101.1	15.8	17200	15	Φ22	Φ35	2G1"	153
XL21.6/454MA	21.6	16.8	134.8	21.0	15600	15	Φ22	Φ35	2G1"	169
550 Fan Series
XL9.8/551MA	9.8	7.6	54.5	8.5	7400	18	Φ16	Φ28	G1"	82
XL11.4/551MA	11.4	8.9	68.0	10.6	7000	18	Φ16	Φ28	G1"	89
XL12.5/551MA	12.5	9.8	81.6	12.7	6600	18	Φ16	Φ28	G1"	95
XL19.6/552MA	19.6	15.3	108.8	17.0	14800	20	Φ22	Φ35	G1"	143
XL22.9/552MA	22.9	17.9	136.0	21.2	14000	20	Φ22	Φ35	G1"	156
XL25.0/552MA	25.0	19.5	163.3	25.5	13200	20	Φ22	Φ35	G1"	169
XL29.4/553MA	29.4	22.9	163.3	25.5	22200	22	Φ28	Φ42	2G1"	204
XL34.3/553MA	34.3	26.8	204.1	31.8	21000	22	Φ28	Φ42	2G1"	224
XL37.5/553MA	37.5	29.3	244.9	38.2	19800	22	Φ28	Φ50	2G1"	245
XL39.2/554MA	39.2	30.6	217.7	34.0	29600	24	Φ28	Φ50	3G1"	266
XL45.7/554MA	45.7	35.6	272.1	42.5	28000	24	Φ28	Φ50	3G1"	291
XL50.0/554MA	50.0	39.0	326.5	50.9	26400	24	Φ28	Φ50	3G1"	319
630 Fan Series
XL15.9/631MA	15.9	12.4	93.3	14.6	10100	28	Φ22	Φ28	G1"	120
XL18.8/631MA	18.8	14.7	116.6	18.2	9800	28	Φ22	Φ35	G1"	132
XL21.0/631MA	21.0	16.4	139.9	21.8	9500	28	Φ22	Φ35	G1"	143
XL31.7/632MA	31.7	24.7	186.6	29.1	20200	30	Φ22	Φ42	2G1"	212
XL37.3/632MA	37.3	29.1	233.2	36.4	19600	30	Φ22	Φ42	2G1"	236
XL42.0/632MA	42.0	32.8	279.9	43.7	19000	30	Φ22	Φ42	2G1"	258
XL47.6/633MA	47.6	37.1	279.9	43.7	30300	32	Φ28	Φ50	3G1"	305
XL56.0/633MA	56.0	43.7	349.8	54.6	29400	32	Φ28	Φ50	3G1"	340
XL63.0/633MA	63.0	49.1	419.8	65.5	28500	32	Φ28	Φ50	3G1"	374
Note: Tc in the table represents the storage temerature. and △ T represents the difference between the storage temperature and the evaporation temperature.

Model	Refrigeration Capacity/R404A(KW)		Area (m²)	Tube Volume (dm³)	Air Volume (m³/h)	Range (m)	Interface Specifications			Weight (kg)
Model	Tc=0℃ △T=8K	Tc=-18℃ △T=7K	Area (m²)	Tube Volume (dm³)	Air Volume (m³/h)	Range (m)	Feed Liquor	Return Air	Drainage	Weight (kg)
350 Fan Series
XL1.4/351LB	1.8	1.4	8.2	1.7	2400	7	Φ12.7	Φ19	G1"	33
XL1.9/351LB	2.4	1.9	12.3	2.5	2150	7	Φ12.7	Φ19	G1"	35
XL2.8/352LB	3.6	2.8	16.4	3.4	4800	8	Φ12.7	Φ19	G1"	52
XL3.8/352LB	4.9	3.8	24.6	5.1	4300	8	Φ12.7	Φ22	G1"	57
XL4.2/353LB	5.4	4.2	24.6	5.1	7200	9	Φ12.7	Φ22	G1"	72
XL5.6/353LB	7.2	5.6	37.0	7.6	6450	9	Φ12.7	Φ22	G1"	79
XL5.6/354LB	7.2	5.6	32.9	6.7	9600	10	Φ16	Φ28	G1"	92
XL7.5/354LB	9.6	7.5	49.3	10.1	8600	10	Φ16	Φ28	G1"	101
450 Fan Series
XL2.7/451LA	3.5	2.7	19.2	3.9	4500	12	Φ12.7	Φ22	G1"	48
XL3.2/451LA	4.1	3.2	25.6	5.3	4100	12	Φ12.7	Φ22	G1"	52
XL5.5/452LA	7.1	5.5	38.4	7.9	9000	13	Φ16	Φ28	G1"	80
XL6.5/452LA	8.3	6.5	51.3	10.5	8200	13	Φ16	Φ28	G1"	87
XL8.3/453LA	10.6	8.3	59.2	11.8	13500	14	Φ22	Φ35	2G1"	114
XL9.8/453LA	12.6	9.8	78.9	15.8	12300	14	Φ22	Φ35	2G1"	124
XL11.1/454LA	14.2	11.1	76.9	15.8	18000	15	Φ22	Φ35	2G1"	144
XL13.2/454LA	16.9	13.2	102.5	21.0	16400	15	Φ22	Φ35	2G1"	157
550 Fan Series
XL6.6/551LA	8.5	6.6	41.5	8.5	7600	18	Φ16	Φ28	G1"	77
XL7.9/551LA	10.1	7.9	51.8	10.6	7200	18	Φ16	Φ28	G1"	83
XL8.9/551LA	11.4	8.9	62.1	12.7	6900	18	Φ16	Φ28	G1"	88
XL13.3/552LA	17.1	13.3	82.8	17.0	15200	20	Φ22	Φ35	G1"	133
XL15.7/552LA	20.1	15.7	103.5	21.2	14400	20	Φ22	Φ35	G1"	144
XL17.9/552LA	22.9	17.9	124.2	25.5	13800	20	Φ22	Φ35	G1"	155
XL19.9/553LA	25.5	19.9	124.2	25.5	22800	22	Φ28	Φ42	2G1"	190
XL23.6/553LA	30.3	23.6	155.3	31.8	21600	22	Φ28	Φ42	2G1"	207
XL26.8/553LA	34.4	26.8	186.3	38.2	20700	22	Φ28	Φ50	2G1"	224
XL26.5/554LA	34.0	26.5	165.6	34.0	30400	24	Φ28	Φ50	3G1"	246
XL31.5/554LA	40.4	31.5	207.0	42.5	28800	24	Φ28	Φ50	3G1"	267
XL35.8/554LA	45.9	35.8	248.5	50.9	27600	24	Φ28	Φ50	3G1"	289
630 Fan Series
XL10.8/631LA	13.8	10.8	71.0	14.6	10200	28	Φ22	Φ28	G1"	111
XL12.8/631LA	16.4	12.8	88.7	18.2	9900	28	Φ22	Φ35	G1"	121
XL14.5/631LA	18.6	14.5	106.5	21.8	9600	28	Φ22	Φ35	G1"	131
XL21.6/632LA	27.7	21.6	142.0	29.1	20400	30	Φ22	Φ42	2G1"	196
XL25.6/632LA	32.8	25.6	177.5	36.4	19800	30	Φ22	Φ42	2G1"	215
XL29.0/632LA	37.2	29.0	212.9	43.7	19200	30	Φ22	Φ42	2G1"	234
XL32.5/633LA	41.7	32.5	212.9	43.7	30600	32	Φ28	Φ50	3G1"	281
XL38.3/633LA	49.1	38.3	266.2	54.6	29700	32	Φ28	Φ50	3G1"	310
XL43.7/633LA	56.0	43.7	319.4	65.5	28800	32	Φ28	Φ50	3G1"	338
Note: Tc in the table represents the storage temerature. and △ T represents the difference between the storage temperature and the evaporation temperature.

Model	Refrigeration Capacity/R404A(KW)		Area (m²)	Tube Volume (dm³)	Air Volume (m³/h)	Range (m)	Interface Specifications			Weight (kg)
Model	Tc=0℃ △T=8K	Tc=-18℃ △T=7K	Area (m²)	Tube Volume (dm³)	Air Volume (m³/h)	Range (m)	Feed Liquor	Return Air	Drainage	Weight (kg)
350 Fan Series
XL1.1/351JB	1.4	1.1	5.6	1.7	2500	7	Φ12.7	Φ19	G1"	32
XL1.6/351JB	2.1	1.6	8.5	2.5	2300	7	Φ12.7	Φ19	G1"	34
XL2.3/352JB	2.9	2.3	11.3	3.4	5000	8	Φ12.7	Φ19	G1"	50
XL3.1/352JB	4.0	3.1	16.9	5.1	4600	8	Φ12.7	Φ22	G1"	54
XL3.4/353JB	4.4	3.4	16.9	5.1	7500	9	Φ12.7	Φ22	G1"	69
XL4.7/353JB	6.0	4.7	25.4	7.6	6900	9	Φ12.7	Φ22	G1"	74
XL4.5/354JB	5.8	4.5	22.5	6.7	10000	10	Φ12.7	Φ22	G1"	88
XL6.2/354JB	7.9	6.2	33.8	10.1	9200	10	Φ16	Φ28	G1"	95
450 Fan Series
XL2.2/451JA	2.8	2.2	13.2	3.9	4700	12	Φ12.7	Φ22	G1"	46
XL2.6/451JA	3.3	2.6	17.6	5.3	4300	12	Φ12.7	Φ22	G1"	49
XL4.3/452JA	5.5	4.3	26.4	7.9	9400	13	Φ16	Φ28	G1"	75
XL5.2/452JA	6.7	5.2	35.2	10.5	8600	13	Φ16	Φ28	G1"	81
XL6.7/453JA	8.6	6.7	40.6	11.8	14100	14	Φ22	Φ35	2G1"	107
XL8.0/453JA	10.3	8.0	54.1	15.8	12900	14	Φ22	Φ35	2G1"	115
XL8.5/454JA	10.9	8.5	52.7	15.8	18800	15	Φ22	Φ35	2G1"	135
XL10.5/454JA	13.5	10.5	70.3	21.0	17200	15	Φ22	Φ35	2G1"	146
550 Fan Series
XL5.7/551JA	7.3	5.7	28.5	8.5	7800	18	Φ16	Φ28	G1"	72
XL6.9/551JA	8.8	6.9	35.5	10.6	7500	18	Φ16	Φ28	G1"	77
XL7.9/551JA	10.1	7.9	42.6	12.7	7200	18	Φ16	Φ28	G1"	81
XL11.5/552JA	14.7	11.5	56.8	17.0	15600	20	Φ22	Φ35	G1"	123
XL13.6/552JA	17.4	13.6	71.2	21.2	15000	20	Φ22	Φ35	G1"	132
XL15.8/552JA	20.3	15.8	85.2	25.5	14400	20	Φ22	Φ35	G1"	141
XL17.0/553JA	21.8	17.0	85.2	25.5	23400	22	Φ28	Φ42	2G1"	175
XL20.5/553JA	26.3	20.5	106.5	31.8	22500	22	Φ28	Φ42	2G1"	189
XL23.6/553JA	30.3	23.6	127.8	38.2	21600	22	Φ28	Φ50	2G1"	202
XL22.6/554JA	29.0	22.6	112.6	34.0	31200	24	Φ28	Φ50	3G1"	227
XL27.2/554JA	34.9	27.2	142.0	42.5	30000	24	Φ28	Φ50	3G1"	244
XL31.8/554JA	40.8	31.8	170.5	50.9	28800	24	Φ28	Φ50	3G1"	261
630 Fan Series
XL9.0/631JA	11.5	9.0	48.7	14.6	10300	28	Φ22	Φ28	G1"	103
XL10.5/631JA	13.5	10.5	60.8	18.2	10000	28	Φ22	Φ35	G1"	111
XL11.7/631JA	15.0	11.7	73.0	21.8	9700	28	Φ22	Φ35	G1"	118
XL17.9/632JA	22.9	17.9	97.4	29.1	20600	30	Φ22	Φ42	2G1"	179
XL20.9/632JA	26.8	20.9	121.7	36.4	20000	30	Φ22	Φ42	2G1"	195
XL23.4/632JA	30.0	23.4	146.0	43.7	19400	30	Φ22	Φ42	2G1"	209
XL26.9/633JA	34.5	26.9	146.0	43.7	30900	32	Φ28	Φ50	3G1"	257
XL31.4/633JA	40.3	31.4	182.5	54.6	30000	32	Φ28	Φ50	3G1"	279
XL35.0/633JA	44.9	35.0	219.1	65.5	29100	32	Φ28	Φ50	3G1"	301
Note: Tc in the table represents the storage temerature. and △ T represents the difference between the storage temperature and the evaporation temperature.

Model	Fan Motor				Electric Defrosting
Model	Voltage (V)	Power (W)	Electric Current (A)	Rotational Speed (r/min)	Coil：KW	Basin: KW	Total Power
XL/351*	220-1	165	0.75	1420	2×0.5	1×0.5	1.5
XL/352*	220-1	330	1.50	1420	2×0.9	1×0.9	2.7
XL/353*	220-1	495	2.25	1420	2×1.3	1×1.3	3.9
XL/354*	220-1	660	3.00	1420	2×1.7	1×1.7	5.1
XL/451*	380-3	290	0.59	1328	3×0.65	1×0.65	2.6
XL/451*	380-3	290	0.59	1328	4×0.65	1×0.65	3.3
XL/452*	380-3	580	1.18	1328	3×1.17	1×1.17	4.7
XL/452*	380-3	580	1.18	1328	4×1.17	1×1.17	5.9
XL/453*	380-3	870	1.77	1328	3×1.73	1×1.73	6.9
XL/453*	380-3	870	1.77	1328	4×1.73	1×1.73	8.7
XL/454*	380-3	1160	2.36	1328	3×2.2	1×2.2	8.8
XL/454*	380-3	1160	2.36	1328	4×2.2	1×2.2	11.0
XL/551*	380-3	670	1.27	1377	4×0.8	2×0.8	6.4
XL/551*	380-3	670	1.27	1377	6×0.8	2×0.8	6.4
XL/552*	380-3	1340	2.54	1377	4×1.6	2×1.6	9.6
XL/552*	380-3	1340	2.54	1377	6×1.6	2×1.6	12.8
XL/553*	380-3	2010	3.81	1377	4×2.3	2×2.3	13.8
XL/553*	380-3	2010	3.81	1377	6×2.3	2×2.3	18.4
XL/554*	380-3	2680	5.08	1377	4×3.0	2×3.0	18.0
XL/554*	380-3	2680	5.08	1377	6×3.0	2×3.0	24.0
XL/631*	380-3	937	1.75	1378	6×1.16	2×1.16	9.3
XL/631*	380-3	937	1.75	1378	9×1.16	2×1.16	12.8
XL/632*	380-3	1874	3.50	1378	6×2.12	2×2.12	17.0
XL/632*	380-3	1874	3.50	1378	9×2.12	2×2.12	23.3
XL/633*	380-3	2811	5.25	1378	6×3.1	2×3.1	24.8
XL/633*	380-3	2811	5.25	1378	9×3.1	2×3.1	34.1

Model	External Dimensions (mm)			Installation Size (mm)
Model	L	W	H	A	B	B1	B2	B3	C	Mounting Hole
XL/351*	910	430	670	360	540				350	4-Φ13
XL/352*	1410	430	670	360	1040				350	4-Φ13
XL/353*	1910	430	670	360	1540				350	4-Φ13
XL/354*	2410	430	670	360	2040		1020		350	6-Φ13
XL/451*	1060	495	775	410	690				450	4-Φ13
XL/452*	1710	495	775	410	1340				450	4-Φ13
XL/453*	2360	495	775	410	1990				450	4-Φ13
XL/454*	3010	495	775	410	2640		1320		450	6-Φ13
XL/551*	1310	600	875	510	940				550	4-Φ13
XL/552*	2210	600	875	510	1840	920			550	6-Φ13
XL/553*	3110	600	875	510	2740	920	1820		550	8-Φ13
XL/554*	4010	600	875	510	3640	920	1820	2720	550	10-Φ13
XL/631*	1610	690	1070	600	1240				600	4-Φ13
XL/632*	2810	690	1070	600	2440	1220			600	6-Φ13
XL/633*	4010	690	1070	600	3640	1220	2420		600	8-Φ13

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About Us

Reliable Manufacturer of Commercial Refrigeration Equipment

We are a professional refrigeration equipment manufacturer with a 150,000 sqm modern factory in China. With advanced production lines and an experienced R&D team, we specialize in producing a wide range of cold storage solutions and commercial refrigeration systems. Our main products include condensing units, air coolers, cold room panels, cold storage doors, and refrigeration compressors. We support OEM & ODM services to meet the diverse needs of global B2B customers.

Exhibitions

Connect with Us at Industry Trade Shows

We regularly attend both domestic and international refrigeration exhibitions to stay up to date with industry trends and connect with global clients. We also support our agents and partners to participate in local expos. Welcome to meet us at upcoming trade fairs!

Why Choose Us?

30+ Years of Manufacturing Expertise

With over 30 years of experience in refrigeration equipment manufacturing, we’re more than just a supplier—we are a strategic partner to help you scale your business. Our factory and engineering team are dedicated to delivering reliable, energy-efficient products that meet commercial and industrial demands.

High-Quality Materials for Better Performance

We use only top-grade materials to ensure long-lasting and stable performance:Aluminum fins and copper tubes for efficient heat exchange;Heater pipes and water collection plates for better defrost;Solid structure and optimized internal design for energy savings;While many suppliers cut corners, we believe in delivering value and quality to every order.

100% Quality Control Process

6-Step Quality Control: Every Product inspected Before Delivery

Certified Reliability

Certified Quality You Can Trust

All of our products are certified with ISO9001 and CE, meeting international quality standards for safety, durability, and environmental responsibility. These certifications give our partners the confidence they need for large-scale projects.

Frequently Asked Questions

Everything You Need to Know Before You Order

1. Are you a factory or trading company?

We are a direct factory located in Foshan, China. With a modern facility and skilled team, we specialize in manufacturing refrigeration equipment. We welcome you to visit us anytime. OEM/ODM services are available for global clients.

2. Can I get a sample?

Yes, samples are available. However, the cost and shipping will be at your expense.

3. Can you produce based on our design or drawing?

Absolutely. We can manufacture based on your samples, drawings, or technical specifications.

4. Can I use my own logo or branding?

Yes, we support OEM & ODM. Your logo and design can be applied to the product and packaging.

5. How do you usually pack the goods?

We use bulk packaging or sturdy wooden boxes suitable for container shipping. Customized packaging is also available upon request.

6. What is your delivery time?

In-stock items: 3–5 days after payment
Custom orders: Usually 30–40 days
We’ll confirm the delivery schedule before order confirmation.

7. What are your payment terms?

30% deposit in advance, 70% balance before shipment
Payment methods accepted: T/T, Credit Card, PayPal, Western Union, Cash

8. What delivery terms do you support?

We support various terms including FOB, CIF, CFR, EXW, etc. We will help you choose the most economical and efficient method for your order.

9. Can you help with project design or cold room layout?

Yes. Our team can provide technical support, layout design, and product recommendations based on your project needs.

10. Do you offer after-sales service and technical support?

Yes. We provide online support, video instructions, and spare parts service to ensure smooth installation and operation.

11. Can you support large volume or urgent orders?

Yes. With a large production capacity and flexible scheduling, we can meet urgent or high-volume demand for B2B projects.

12. What industries are your products suitable for?

Our products are widely used in food cold storage, pharmaceuticals, logistics, supermarkets, and industrial refrigeration systems.

13. How do you ensure product quality?

We have a strict quality control process, including appearance check, leak test, electrical safety test, and final inspection before shipment. All products are ISO9001 and CE certified.

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