Endurance a water cooling system (TEC-Peltier) for diode lasers and Co2 laser machines (Co2 tubes).
Getting started with TEC (Peltier) water chiller
Endurance water TEC cooling (Peltier) chiller data specs
- Max Cooling capacity: 500 watt (good for 80 watt Co2 tube)
- Temperature control accuracy: 1 ° C.
- Tank capacity: 2 / 4 liters
- Dimensions in packing: 500 x 500 x 400 mm
- Total weight: 10 kg
| Power supply | 110-220V±10%, 50/60HZ |
| Amperage, A | 1 |
| Type of chiller | Water |
| Max cooling capacity, watt | 500 |
| Temperature capacity | ± 1 ℃ |
| Water pump power, watt | 100 |
| Tank capacity (l) | 2/4 |
| Material | Aluminum |
| Max water speed: (l/min) | 2 |
| Total weight kg | 10 |
| Size of the chiller mm | 500X 500X 400 |
Water TEC Peltier chiller for your 30 / 40 watt Co2 laser tube
The Endurance 4xTEC coolers work great for 30 watt Co2 tube (Flux Beamo)
Outside temperature: 28 C
Stable water temperature after 30 minutes full power mode: 24-26C
Minimum water temperature (idle mode): 10-11C
Water TEC Peltier chiller for your 60/ 80 watt Co2 laser tube
The Endurance 8xTEC coolers work great for 60/80 watt Co2 tube
Outside temperature: 28 C
Stable water temperature after 30 minutes full power mode: 24-26C
Minimum water temperature (idle mode): 10-11C
A basic principle of an Endurance water TEC (Peltier) cooling system
https://www.youtube.com/watch?v=tvk7Cxiphww
Inside the water TEC chiller system
Attaching an Endurance TEC water chiller to Co2 laser machine – live video footage
https://youtu.be/kwqYjgQfq4E
The basic principle of an Endurance TEC water chiller

Water TEC (Peltier) chiller components list:
Power supply 24V 15A – 2 pcs (in the current version, you can use one 24V 15A and 12V 30A)
Tank 2L – 1pc (2pc)
Pump – 1pc
DC-DC buck 10A – 1pc
DC-DC buck 20A – 4pcs
Peltier DRIFT-0.8 – 2 pieces
Peltier TEC1-12715 SR – 2 pieces
Heat exchanger 250x40x12mm – 1pc
Silicone hose D10mm – 1.5m (inside) + 4m (outside)
Heat insulating tube Therma Eco C12 / 6 – 1.5m + 4m
Thermal insulation of a heating table for a 3D printer (for a heat exchanger) – 350 sq. Cm
Two-position switch 21x15mm – 4pcs
Two-position switch 30x25mm – 1pc
220V socket with fuse – 1pc
Radiator D90mm H35mm – 4pcs
Fan 80x80mm 0.6A – 4pcs
Fan 120x120mm 0.28A – 1pc
Voltammeter 100V 10A – 4pcs
Connecting nipple for hoses – 3pcs
Key parameters of the Water TEC chiller (2 x TEC):
Water tank volume: 1.35 liters.
Water pumping speed: 600 ml / min .
TEC cooler power: 2 x 120 watt = 240 watt (adjustable).
TEC cooler power 2 x 60 watt = 120 watt (optimal)
Minimum water temperature: 15-16C (if the outside temperature is ~30-31C).
Reaching the maximum capacity: 30-45 minutes.
Average temperature drop: 1.25C / 5 minutes.
Cooling capacity: 70-80 watt.
Good for: 40 watt Co2 tube, laser diodes, other purposes.
Testing protocol of an Endurance water TEC – Peltier water chiller (2X TEC)
Testing data #1
| Time | Room temperature, C | Water temperature in the chiller, C | Water temperature in the Co2 tube, C | 2X TEC power |
| Idle mode | ||||
| 14:00 | 26 | 27,3 | 28 | 240W |
| 14:05 | 26 | 25,6 | 26 | 240W |
| 14:10 | 26 | 22,7 | 23 | 240W |
| 14:15 | 26 | 20,5 | 21 | 240W |
| 14:20 | 26 | 18,7 | 20 | 240W |
| 14:25 | 26 | 17,1 | 18 | 240W |
| 14:30 | 26 | 15,9 | 17 | 240W |
| 14:35 | 26 | 14,8 | 16 | 240W |
| 14:40 | 26 | 13,9 | 15 | 240W |
| 14:50 | 26 | 12,6 | 14 | 240W |
| 30 watt Co2 laser – full power | ||||
| 14:55 | 26 | 15,1 | 16 | 240W |
| 15:00 | 26 | 17,5 | 18 | 240W |
| 15:05 | 26 | 20 | 20 | 240W |
| 15:10 | 26 | 22,1 | 22 | 240W |
| 15:15 | 26 | 23,5 | 23 | 240W |
| 15:20 | 26 | 25 | 25 | 240W |
| 15:25 | 26 | 26,2 | 26 | 240W |
| 15:30 | 26 | 26,8 | 26 | 240W |
| 15:35 | 26 | 27,4 | 27 | 240W |
| 15:40 | 26 | 28 | 28 | 240W |
| 15:45 | 26 | 28,6 | 28 | 240W |
| 15:50 | 26 | 28,9 | 29 | 240W |
| 15:55 | 26 | 29,2 | 29 | 240W |
| 16:00 | 26 | 29,4 | 29 | 240W |
| 16:05 | 26 | 29,6 | 29 | 240W |
| 16:10 | 26 | 29,7 | 29 | 240W |
| 16:45 | 26 | 14,8 | 16 | 290W |
| 16:50 | 26 | 17,7 | 18 | 290W |
| 16:55 | 26 | 19,8 | 20 | 290W |
| 17:00 | 26 | 21,5 | 22 | 290W |
| 17:05 | 26 | 23,1 | 23 | 290W |
| 17:10 | 26 | 24,3 | 24 | 290W |
| 17:15 | 26 | 25,3 | 25 | 290W |
| 17:20 | 26 | 26,4 | 26 | 290W |
| 17:25 | 26 | 26,9 | 27 | 290W |
| 17:30 | 26 | 27,2 | 27 | 290W |
| 17:35 | 26 | 27,9 | 27 | 290W |
| 17:40 | 26 | 28 | 28 | 290W |
| 17:45 | 26 | 28,2 | 28 | 290W |
| 16:55 | 20 | 20 | 20 | 290W |
| 16:10 | 21 | 23,2 | 23 | 290W |
| 16:25 | 20 | 23,7 | 23 | 290W |
| 15:20 | 28 | 26,8 | 27 | 290W |
| 15:35 | 28 | 29,6 | 29 | 290W |
| 15:50 | 28 | 30,8 | 31 | 290W |
| 16:15 | 28 | 32,4 | 32 | 290W |
| 12:55 | 30 | 28,6 | 29 | 290W |
| 13:05 | 30 | 30,5 | 30 | 290W |
| 13:15 | 30 | 31,9 | 32 | 290W |
| 13:25 | 30 | 33,1 | 33 | 290W |
| 13:35 | 30 | 33,5 | 33 | 290W |
| 13:45 | 30 | 33,8 | 33 | 290W |
| 13:55 | 30 | 34,3 | 34 | 290W |
| 14:20 | 29 | 28,8 | 29 | 290W |
| 14:30 | 29 | 30,3 | 30 | 290W |
| 14:40 | 29 | 31,4 | 31 | 290W |
| 14:50 | 29 | 32 | 32 | 290W |
| 15:00 | 29 | 32,3 | 32 | 290W |
| 15:10 | 29 | 32,5 | 32 | 290W |
| 15:20 | 29 | 32,6 | 32 | 290W |
Key parameters of the Water TEC chiller (4 x TEC):
Water tank volume: 2.5 liters.
Water pumping speed: 1.8 Litres/min.
TEC cooler power: 4 x 120 watt = 480 watt (adjustable).
TEC cooler power 4 x (50-70) watt = 200-240 watt (optimal)
Minimum water temperature: 12-13C (if the outside temperature is ~32-33C).
Reaching the maximum capacity: 25-30 minutes.
Average temperature drop: 2.8C / 5 minutes.
Cooling capacity: 140-160 watt.
Good for: 80 watt Co2 tube, laser diodes, other purposes.
Water temperature 17-18C (under 50 watt heat load)
Testing protocol of an Endurance water TEC – Peltier water chiller (4X TEC)
Testing data #1
| Time | Local temperature, C | The water temperature inside the chiller, C | The water temperature inside the Co2 tube, C |
| Idle | |||
| 14:02 | 25 | 25 | 26 |
| 14:04 | 25 | 23 | 24 |
| 14:05 | 25 | 22 | 23 |
| 14:07 | 25 | 20 | 21 |
| 14:12 | 25 | 17 | 18 |
| Full power – 30 watt Co2 tube | |||
| 14:13 | 25 | 17,5 | 19 |
| 14:15 | 25 | 18 | 19 |
| 14:20 | 25 | 18,5 | 20 |
| 14:23 | 25 | 19 | 20 |
| 14:28 | 25 | 19,5 | 21 |
| 14:33 | 24 | 20 | 21 |
| 14:43 | 24 | 20 | 21 |

Testing data #2
| Time | Local temperature, C | The water temperature inside the chiller, C | The water temperature inside the Co2 tube, C |
| Idle | |||
| 13:33 | 28 | 28 | 19 |
| 13:37 | 28 | 23,5 | 18 |
| 13:42 | 28 | 20,7 | 17 |
| 13:43 | 28 | 19,9 | 16 |
| 14:10 | 28 | 11 | 12 |
| Full power – 30 watt Co2 tube | |||
| 13:44 | 28 | 20,1 | 20,6 |
| 13:46 | 28 | 20,5 | 21 |
| 13:48 | 28 | 21 | 21,5 |
| 13:50 | 28 | 22 | 22,5 |
| 13:52 | 28 | 23 | 23,5 |
| 13:53 | 28 | 23,5 | 24 |
| 13:57 | 28 | 24,5 | 25 |
| 14:03 | 28 | 25,7 | 26,2 |
| 14:05 | 28 | 25,8 | 27 |
| 14:07 | 28 | 25,9 | 27 |
| 14:10 | 28 | 25,9 | 27 |
| 14:13 | 28 | 25,9 | 27 |

Testing data #3
| Time | Local temperature, C | The water temperature inside the chiller, C | The watertemperature inside the Co2 tube, C |
| Idle | |||
| 10:43 | 31 | 30 | |
| 10:51 | 31 | 22 | |
| 10:54 | 31 | 20,5 | |
| 10:56 | 31 | 19,3 | |
| 11:01 | 31 | 17 | |
| 11:03 | 31 | 16 | |
| Full power – 30 watt Co2 tube | |||
| 11:54 | 31 | 30,9 | 30 |
| 11:59 | 31 | 30 | 30 |
| 12:04 | 31 | 29,5 | 29 |
| 12:09 | 31 | 29,4 | 29 |
| 12:14 | 31 | 29,4 | 29 |
| 12:19 | 31 | 29,4 | 29 |
| 12:24 | 31 | 29,4 | 29 |

Testing data #4
| Time | Local temperature, C | The water temperature inside the chiller, C | The water temperature inside the Co2 tube, C |
| Idle | |||
| 10:43 | 31 | 30 | |
| 10:51 | 31 | 22 | |
| 10:54 | 31 | 20,5 | |
| 10:56 | 31 | 19,3 | |
| 11:01 | 31 | 17 | |
| 11:03 | 31 | 16 | |
| Full power – 30 watt Co2 tube | |||
| 12:54 | 31 | 16 | 18 |
| 12:59 | 31 | 19,9 | 22 |
| 13:04 | 31 | 22 | 23 |
| 13:09 | 31 | 24,3 | 25 |
| 13:14 | 31 | 25,5 | 26 |
| 13:19 | 31 | 26,7 | 27 |
| 13:24 | 31 | 27,4 | 28 |
| 13:29 | 31 | 27,8 | 28 |
| 13:34 | 31 | 28,5 | 29 |
| 13:39 | 31 | 28,7 | 29 |

Water cooling system test with diode lasers
- 2 x diode lasers work full power
- 2 x 4.8V x 4.5A = 43.2 watt
- Heat power ~ 30 watt
- Diode temperature after 30 min of full power laser ~ 26-27C
- Initial water temperature 18C
- Water temperature in the water tank after 30 min of full power laser diodes ~ 22C
- Room temperature ~ 30C
- Water change temperature in a water tank +4C
- Delta temperature between the diode laser and the room temperature ~3-4C
We use only high-quality TEC cooling systems Drift-0.8_35x55
Min TEC temperature is -15C (if the outside temperature is 30C)
Laser experiment test with 40 watt Co2 tube (to be made)



























