Universal Reciprocating Piston Compressor Stable Cooling Compressor for Household & Commercial Refrigeration
Premium reciprocating piston compressor designed for professional refrigeration and HVAC systems. Features stable pressure output, low vibration, low noise and excellent energy-saving performance. Adopting high-precision internal structure and wear-resistant parts, it supports long-term continuous operation, ideal for freezers, cold storage, display showcases and commercial cooling equipment replacement and OEM projects.
High-Performance Reciprocating Piston Compressor for Refrigeration & HVAC Systems
Our reciprocating compressor is a classic and reliable piston-type refrigeration core unit, widely adopted in household and commercial cooling equipment. Built with high-precision crankshaft connecting rod structure and wear-resistant piston accessories, this compressor delivers stable gas compression and continuous refrigeration capacity. With mature manufacturing technology and strict quality control, it serves as a stable and cost-effective power source for global refrigeration supporting projects.
Stable Refrigeration & Energy Saving Performance
The optimized piston compression structure ensures uniform gas suction and discharge, providing stable cooling pressure and consistent refrigeration efficiency. It effectively reduces frequent startup and shutdown energy consumption, lowers overall equipment operating power, and maintains constant temperature operation for cooling systems, achieving outstanding long-term energy-saving effects.
Low Vibration & Low Noise Operation
Equipped with precision balancing structure and shock-absorbing accessories, the reciprocating compressor effectively reduces mechanical vibration and operating noise during high-speed operation. The overall operation is smooth and stable, avoiding excessive noise and equipment resonance, meeting the quiet operation requirements of commercial venues, supermarkets and indoor refrigeration environments.
Wear-Resistant Structure & Ultra-Long Service Life
Key internal components adopt high-strength wear-resistant and high-temperature resistant materials, with excellent compression resistance and aging resistance. The sealed structure design effectively prevents internal air leakage, oil leakage and dust ingress. It can adapt to long-term continuous operation and variable load working conditions, greatly reducing failure rate and maintenance cost.
Wide Refrigerant Compatibility & High Safety
This reciprocating compressor is compatible with mainstream refrigerants including R134a, R600a and R404a. The internal compression system and lubrication structure fully meet international refrigeration standards. It is equipped with over-current, over-pressure and over-temperature protection functions to ensure safe and stable operation of the entire cooling system.
Compact Structure & Easy Replacement
With integrated compact design, standard installation size and reserved interface positions, the compressor features strong universality. It is easy to install, disassemble and replace, perfectly matching various old and new refrigeration equipment. It is widely applicable for after-sales maintenance, bulk supporting and OEM customized projects.
Diversified Models & Wide Application
We supply multiple power and displacement models to meet different cooling capacity demands. Suitable for household refrigerators, chest freezers, supermarket display cabinets, small cold storage rooms and commercial HVAC cooling units. Stable quality and competitive price make it popular in global overseas markets for bulk wholesale and export orders.

Product Parameter Table
Serial |
Model |
Displacement (cm³) |
RotateSpeed |
Capacity |
COP |
Oil charge |
Cooling |
Power Supply |
Certificate |
|||
Test Conditions:-23.3℃(-10F) |
COP |
EER |
||||||||||
W |
Kcal/h |
Btu/h |
W/W |
Btu/Wh |
ml |
|||||||
L |
QDZH15G |
1.5 |
2000 |
30 |
26 |
102 |
0.95 |
3.24 |
130 |
F |
12/24V(DC) |
CE |
2500 |
35 |
30 |
120 |
0.96 |
3.27 |
|||||||
3000 |
42 |
36 |
143 |
0.96 |
3.27 |
|||||||
3500 |
50 |
44 |
170 |
1.00 |
3.41 |
|||||||
QDZH20G |
2.0 |
2000 |
40 |
34 |
136 |
0.98 |
3.34 |
|||||
2500 |
48 |
41 |
163 |
0.98 |
3.34 |
|||||||
3000 |
57 |
49 |
194 |
1.00 |
3.41 |
|||||||
3500 |
65 |
56 |
221 |
1.00 |
3.41 |
|||||||
QDZH25G |
2.5 |
2000 |
43 |
37.2 |
146 |
1.08 |
3.68 |
|||||
2500 |
53 |
46 |
186 |
1.05 |
3.58 |
|||||||
3000 |
62 |
54 |
211 |
1.06 |
3.62 |
|||||||
3500 |
72 |
62 |
245 |
1.04 |
3.55 |
|||||||
QDZH30G |
3.0 |
2000 |
52 |
45 |
176 |
1.05 |
3.58 |
|||||
2500 |
64 |
55 |
217 |
1.05 |
3.58 |
|||||||
3000 |
75 |
64 |
254 |
1.06 |
3.62 |
|||||||
3500 |
87 |
75 |
295 |
1.04 |
3.55 |
|||||||
QDZH35G |
3.5 |
2000 |
60 |
52 |
205 |
1.08 |
3.68 |
|||||
2500 |
73 |
63 |
249 |
1.07 |
3.65 |
|||||||
3000 |
86 |
74 |
293 |
1.06 |
3.62 |
|||||||
3500 |
100 |
87 |
341 |
1.05 |
3.58 |
|||||||
QDZH43G |
4.3 |
2000 |
80 |
69 |
273 |
1.15 |
3.92 |
|||||
2500 |
96 |
83 |
328 |
1.20 |
4.09 |
|||||||
3000 |
115 |
99 |
392 |
1.25 |
4.27 |
|||||||
3500 |
138 |
119 |
471 |
1.25 |
4.27 |
|||||||
RK |
QDZH50G |
5.0 |
2000 |
87 |
75 |
297 |
1.17 |
3.99 |
180 |
|||
2500 |
104 |
90 |
355 |
1.13 |
3.86 |
|||||||
3000 |
130 |
112 |
444 |
1.35 |
4.61 |
|||||||
3500 |
163 |
141 |
556 |
1.20 |
4.09 |
|||||||
QDZH65G |
6.5 |
2000 |
120 |
104 |
409 |
1.20 |
4.09 |
|||||
2500 |
150 |
130 |
512 |
1.20 |
4.09 |
|||||||
3000 |
180 |
156 |
614 |
1.20 |
4.09 |
|||||||
3500 |
210 |
181 |
717 |
1.20 |
4.09 |
|||||||
QDZH75G |
7.5 |
2000 |
146 |
125 |
499 |
1.20 |
4.09 |
|||||
2500 |
183 |
156 |
625 |
1.20 |
4.09 |
|||||||
3000 |
220 |
189 |
752 |
1.20 |
4.09 |
|||||||
3500 |
256 |
219 |
875 |
1.20 |
4.09 |
|||||||
QDZH91G |
9.1 |
2000 |
180 |
154 |
615 |
1.20 |
4.09 |
|||||
2500 |
225 |
193 |
769 |
1.20 |
4.09 |
|||||||
3000 |
270 |
231 |
923 |
1.20 |
4.09 |
|||||||
3500 |
315 |
270 |
1077 |
1.20 |
4.09 |
|||||||
R600a LBP M/HBP 12/24V
Serial |
Model |
Displacement(cm³) |
RotateSpeed |
Capacity |
COP |
Oil charge |
Cooling |
Power Supply |
Certificate |
|||
Test Conditions:-23.3℃(-10F) |
COP |
EER |
||||||||||
W |
Kcal/h |
Btu/h |
W/W |
Btu/Wh |
ml |
|||||||
L |
QDZY35G |
3.5 |
2000 |
42 |
36 |
143 |
1.15 |
3.92 |
130 |
F |
12/24V(PC) |
CE |
3500 |
50 |
42 |
171 |
1.25 |
4.27 |
|||||||
3000 |
60 |
53 |
205 |
1.35 |
4.61 |
|||||||
3500 |
72 |
62 |
246 |
1.30 |
4.44 |
|||||||
QDZY43G |
4.3 |
2000 |
49 |
42 |
167 |
1.15 |
3.92 |
|||||
2500 |
61 |
53 |
208 |
1.25 |
4.27 |
|||||||
3000 |
76 |
66 |
259 |
1.35 |
4.61 |
|||||||
3500 |
95 |
82 |
324 |
1.30 |
4.44 |
|||||||
QDZY50G |
5.0 |
2000 |
60 |
52 |
205 |
1.15 |
3.92 |
|||||
2500 |
72 |
62 |
246 |
1.25 |
4.27 |
|||||||
3000 |
86 |
74 |
293 |
1.35 |
4.61 |
|||||||
3500 |
108 |
93 |
369 |
1.30 |
4.44 |
|||||||
QDZY65G |
6.5 |
2000 |
67 |
58 |
229 |
1.15 |
3.92 |
|||||
2500 |
93 |
80 |
317 |
1.25 |
4.27 |
|||||||
3000 |
110 |
95 |
375 |
1.35 |
4.61 |
|||||||
3500 |
131 |
113 |
447 |
1.30 |
4.44 |
|||||||
QDZY75G |
7.5 |
2000 |
91 |
79 |
311 |
1.15 |
3.92 |
|||||
2500 |
108 |
93 |
369 |
1.25 |
4.27 |
|||||||
3000 |
130 |
112 |
444 |
1.35 |
4.61 |
|||||||
3500 |
156 |
135 |
532 |
1.30 |
4.44 |
|||||||
FAQ
Q1: What is a reciprocating compressor used for?
A: The reciprocating piston compressor is the core power component of refrigeration systems. It compresses refrigerant gas to provide stable cooling power, widely used in refrigerators, freezers, display showcases, cold storage and commercial HVAC cooling equipment.
Q2: What refrigerants can this compressor support?
A: It is compatible with mainstream refrigerants including R134a, R600a and R404a. Internal structure and lubrication system strictly comply with international refrigeration standards, ensuring stable compression performance and no system failure.
Q3: What are the advantages of reciprocating compressor?
A: This piston compressor features stable pressure output, strong load resistance and high cooling efficiency. It runs smoothly with low vibration and low noise, has wear-resistant internal structure and ultra-long service life, with low failure rate and easy maintenance.
Q4: Does the compressor have multi-protection functions?
A: Yes. All reciprocating compressors are equipped with perfect over-current, over-pressure and over-temperature automatic protection functions. It can effectively avoid equipment burnout and system damage caused by abnormal operation, ensuring long-term safe use.
Q5: Can you provide different power and model options?
A: Full model selection and customized service are supported. We provide multiple displacement and power specifications, and can match suitable compressors according to your equipment cooling capacity demands, supporting OEM and ODM custom orders.
Q6: Is the compressor suitable for long-term continuous work?
A: Absolutely. Adopting high-strength wear-resistant internal parts and efficient heat dissipation structure, the compressor supports 24-hour continuous stable operation, not easy to heat up and aging, adapting to commercial long-term refrigeration working conditions.
Q7: Is it easy to install and replace the compressor?
A: Yes. The compressor adopts standardized overall size and reserved mounting interfaces. The structure is compact and regular, easy to position, install and debug, saving replacement time and on-site construction cost.
Q8: What is your packaging and shipping solution?
A: Products are packed with shockproof inner packaging and reinforced export cartons. Bulk export orders adopt wooden pallet reinforcement to prevent collision and extrusion damage, suitable for long-distance sea freight and global transportation.
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