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MartilloTech

CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

Name: CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers
Brand: MartilloTech
SKU: Cooler-Call3D-1
Price: 149.99 USD
Availability:  InStock

CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

$149.99

$149.99 ~~$199.99~~

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03 May | Estimated Delivery

🚚 More information regarding shipping & delivery

CoolDry Pro 3D Printer Cooler Overview

Heat-creep Control for Enclosed and High-ambient Printing

Heat creep and elevated chamber temperatures can soften filament too early, leading to clogs and inconsistent extrusion during long prints. CoolDry Pro is designed to send dry, cold airflow directly to the hotend heat sink, helping the hotend stay more thermally stable in enclosed printers and hotter rooms. It can be useful when you want to keep the enclosure closed for noise and fume control, while still improving hotend cooling behavior. Results vary by printer model, chamber temperature, filament type, and airflow alignment.

What is CoolDry Pro 3D Printer Cooler?

CoolDry Pro is a professional active cold-air extruder cooler built to help manage hotend heat sink temperature in challenging conditions such as enclosed printers, hot chambers, and high-speed printing. Instead of relying only on the stock hotend fan, it delivers cooled, dehumidified air toward the heat sink. The system is designed for plug-and-play installation with many externally-fed 3D printers and supports both 1.75 mm and 2.85 mm filament paths. For best performance, the cold-air outlet should be aligned precisely to the heat sink.

Key Features

• Targeted anti-heat-creep airflow: Routes dry, cold air to the hotend heat sink to help reduce heat creep in hot environments.
• Designed for hot chambers: Intended for enclosed printing where ambient temperatures can exceed 33°C / 92°F (typical scenarios).
• Dry-air positive pressure path: Helps reduce moisture exposure in the filament path and may help reduce gear corrosion risk over time.
• Plug-and-play alignment setup: Typical installation can be completed in about 10 minutes, with no permanent printer modification (setup quality matters).
• Low noise and efficient power: Listed operating noise around 48 dBA and total rated power 55W.
• Condensate collection: Built-in container plus bottle adapter for extended drainage intervals.
• Wide printer compatibility (externally-fed): Compatible with many desktop/professional printers using 1.75 mm / 2.85 mm filament (fitment varies).

Product Specification

• Product name: CoolDry Pro
• Manufacturer: MartilloTech
• Dimensions: 6.9 × 8.1 × 2.9 in (17.5 × 20.6 × 7.4 cm)
• Input voltage: AC 100–240V, 50/60Hz
• Power: 55W total (cooling module 36W)
• Power adapter output: 12V 7A DC
• Airflow volume: ~0.35 CFM (10 L/min)
• Outlet air temperature: listed as 10–17°C (50–64°F) output air; described as 20°F+ (~11°C+) below ambient in typical conditions
• Suggested ambient use case: > 33°C / 92°F hot chamber environments (scenario-dependent)
• Noise: 48 dBA
• Condensate empty cycle (typical): 6–8 hours at 30°C / 80% RH
• Supported filaments (typical): PLA, PETG, TPU, PVA, BVOH (results vary by material and settings)

Better Than Water Cooling for Many Printer Setups

Compared with water cooling, a dry-air cooling approach avoids water leakage risk near electronics and can be simpler to install and maintain. It also keeps the airflow dry, which may help reduce moisture-related filament issues. Actual cooling effectiveness depends on airflow routing, heat sink geometry, and alignment.

Package Includes

- CoolDry Pro Active Cold Air Extruder Cooler main unit
- 100V–240V universal input power adapter (12V 7A DC output)
- Air Vent Connector (for PTFE tube installation between AMS and AMS Hub)
- Condensate container plastic bottle adapter (for extended unattended printing)
- Installation accessories (for quick 10-minute setup)
- Official installation guide (step-by-step for plug-and-play use)
- Adapter file (digital/physical, for custom condensate drainage connections)

Installation Guide

Explore Precision Upgrades for Your Bambu Lab

FAQs about CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

How to manage the condensate water of the 3D printer cooler?

The cooler is equipped with a built-in condensate collection container. Under the typical working condition of 30°C/86°F and 80% humidity, it needs to be emptied every 6–8 hours; the matching adapter can be connected to a plastic bottle to extend the drainage interval.

What consumable parts does the cooler have and how long is the warranty?

The air pump and condensate filter cartridge are consumable parts; the whole machine has a 1-year warranty for non-human damage.

How can I make sure this product fits my printer?

A: You can check the compatibility information in our product filters or in the Features section of each item. If you’re still unsure which part is right for your printer model, feel free to contact our support team for confirmation.

How can I track my order?

You will receive a YunExpress order number immediately after your order ships.Use this number to track the package from our warehouse to your destination country.
For the following countries, you will also receive a corresponding local tracking number.Please use the official website of the local carrier for real-time delivery updates:

United States: USPS
Germany & Netherlands: DHL
United Kingdom: Evri
Spain: CTT
France: Colis Privé

For all other regions: Only a YunExpress tracking number will be provided (no local carrier tracking available).

What if the tool I purchased doesn’t meet my expectations?

If you’re not satisfied with your purchase, we offer a hassle-free return policy. Just contact our customer support team within 30 days, and we'll help you with the return or exchange process.

Customer reviews

Placed my order on February 3rd and received it on February 12th —only 7 business days! Shopping was easy, communication was great, and delivery times were really decent. Very happy with my purchase!

Brad Brockway

Engineering
Found this shop on Reddit, chatted with a real person about the P2S filter I needed. Asked if they could ship to SG, they checked and made it happen! Super happy because this filter is basically impossible to find locally and always out of stock everywhere else. Fast, friendly, and solved my problem perfectly. Will buy again!

Ok_Government_1125

Hobbyist in Singapore
Bought a ventilation system but changed my mind last minute. I thought returns would be a huge hassle, but they told me there’s a return warehouse in Houston only about a 10-minute drive from where I live in Missouri City. Drove over and returned it super easily. Super convenient return process, great experience overall!

RayRobert

Project manager

Extruder Cooler Saved My X1C Prints Shoutout to the creator! I have an X1C that's always been in...

Shoutout to the creator! I have an X1C, and I always print with the enclosure closed—PETG at 280°C and PVA at 240°C. I bought the two-year-old version of this extruder cooling setup a while back, and honestly, didn’t really notice a difference when using it.

That is, until I moved last month and forgot to bring the extruder cooler with me. Suddenly, every single print was clogging—*every time*. Then once I hooked the cooler back up? Problem solved, worked like a charm again.

Also, quick rant about Bambu Lab’s PETG HF: if the chamber temp gets too high, it clogs *so* easily. No wonder they ended up discontinuing it later!

Central Air Pump for Hotend Cooling Actually, when I saw the built-in air pump in the Bamboo H2D ...

Actually... When I saw that the Bamboo H2D Laser Version has a built-in air pump, I started thinking—what if we removed all the hotend fans and used a single large air pump for centralized air supply instead? We could just install a valve near the hotend to control it, and the response speed would probably be faster than with cooling fans too.

Balcony 3D Printing Saved My Summer The first summer after buying a 3D printer, I experienced my ...

The first summer after buying my 3D printer, I ran into my first extruder clog. At first, I figured it was the new filament—maybe it was low quality. But then I tried the old filament, and the same thing happened. Taking apart the extruder was such a hassle. Finally, it hit me: maybe it was too hot? Sure enough, leaving the door open while printing fixed it. Since the printer was on the balcony, I didn’t mind leaving the door open at all.

Later, the company got one too. We couldn’t stick it on a balcony, though, and printing ABS reeked *so* bad. So we ended up buying a set [to fix that].

Excited About My P1P but ASA Clogs Happen I bought one and a pump set I got used for cheap. I'm ...

I bought one, plus a used pump set—got them cheap. I’m pretty excited to see how it goes. My P1P is insulated, and when printing ASA with a chamber temperature of 65°C, I often get clogs if the flow rate isn’t high enough, like when printing tree supports.

CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

$149.99

$149.99 ~~$199.99~~

CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

CoolDry Pro Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

CoolDry Pro 3D Printer Cooler Overview