1 8
MartilloTech

CoolDry Pro 2 Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

CoolDry Pro 2 Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

$259.90
$259.90
Shipping calculated at checkout.

1 in stock

Hurry up! Offer ends in
00 Days
00 Hours
00 Minutes
00 Seconds
  • 90-Day Warranty
  • 30-Day Return
  • 7-Day Delivery
Place your order today
22 Sep | Estimated Delivery
🚚 More information regarding shipping & delivery

CoolDry Pro 2 3D Printer Cooler Overview

Product Description

The 3D printer extruder cooler CoolDry Pro 2 actively pumps dry, chilled air directly into the extruder through the stock filament feed path on supported Bambu Lab printers. By establishing a sharp thermal barrier at the cold zone without lowering chamber temperature, it eliminates heat creep in hot ambient environments (≥30°C / 86°F) and enables seamless closed-door dual-material printing—including PVA supports for ABS/TPU, PLA-on-PETG breakaway, and ultra-soft TPU 85A. It also prevents stepper motor overheating and gear slipping during high-flow printing, while keeping ultrafine particles (UFPs), fumes, and noise safely contained inside. Built with auto-drain, optical sensing, and quiet <48 dBA operation.

Why Upgrade to CoolDry Pro (2nd Gen)?

Enclosed Bambu printers often suffer from heat creep when printing PLA, TPU, or PVA, forcing users to open the door—which leaks noise, odors, and billions of airborne ultrafine particles (UFPs) while dropping chamber heat needed for engineering plastics. The 2nd-gen CoolDry Pro solves this by pumping dry, chilled air directly into the extruder via the existing filament path. It maintains a chilled cold zone while keeping the chamber at 50°C (122°F), unlocking flawless dual-material prints (PVA with ABS/PETG/TPU, PLA-on-PETG breakaway), ultra-soft TPU 85A extrusion, and preventing motor heat buildup in high-flow setups. Upgraded with an ABS molded housing, auto-drain, optical fail-safe sensing, and 2× Performance mode.

Key Features & Requirements

  • Clog-free printing in summer & hot environments: Prevents heat creep and extruder jams for PLA, TPU 85A, and PVA in ambient temperatures ≥30°C (86°F)
  • Unlocks advanced dual- & mixed-material printing: Actively cools the extruder to eliminate switching clogs—enabling PLA-on-PETG quick-breakaway supports, water-soluble PVA supports for ABS/PETG/TPU, and buckle-free extrusion for soft TPU 85A
  • Cleaner, safer closed-door printing: Keeps chamber closed to contain toxic fumes, VOCs, odors, noise, and billions of airborne ultrafine particles (UFPs) without risking heat creep
  • Prevents motor overheating in high-flow setups: Keeps extruder stepper motors cool to eliminate gear slipping and filament grinding during demanding high-volumetric extrusion
  • Direct-path dry cold air delivery: Compresses and feeds dry, chilled air directly into the extruder via the existing filament feed path without dropping chamber temperature
  • Smart Monitoring System: Features cold-end frost monitoring, optical water-level sensing, thermal dissipation tracking, and intelligent algorithm control
  • Auto-drain & 50μm filtration: Industrial water-gas separator with auto-drain float for 24/7 continuous multi-day printing
  • Quiet Default mode under 48 dBA; long-press Performance mode for 2× airflow
  • For Bambu Lab A1 / A1 mini, H2S / P2S / P1S / X1C, and X2D / H2D / H2C
  • H2 5-way, X2D 5-way, and A1 magnetic front cover sold separately; P2S / P1S / X1C use the included kit

Product Specification

  • Operating mechanism: Direct-path dry cold air delivery via stock filament feed tube
  • Input voltage: AC 100–240V, 50/60Hz
  • Rated power: 60W
  • Adapter output: 12.0V 5.0A DC, 60W (UL / CE / FCC / UKCA listed adapter)
  • Airflow volume: ~0.42 CFM (12 L/min)
  • Delivery pressure: about 2.9 psi (20 kPa) above ambient
  • Noise: <48 dBA in Default mode
  • Modes: Default; Performance (long-press; 2× airflow)
  • Dimensions: 6.85 × 8.19 × 2.91 in (174 × 208 × 74 mm)
  • Net weight: 2.49 lb (1130 ± 10 g)
  • Condensate system: industrial water-gas separator, 50-micron filter, auto-drain float
  • Smart Monitoring Suite: cold-end anti-frost monitoring, optical water-level sensor, heat-dissipation thermal sensor, intelligent algorithm control
  • Compatible printers: Bambu Lab A1 / A1 mini; H2S / P2S / P1S / X1C; X2D / H2D / H2C
  • Typical use case: high-ambient (≥30°C/86°F) PLA/TPU printing, high-chamber (50°C/122°F) dual-material printing, high-flow motor cooling
  • Optional accessory: temperature-controlled outlet (sold separately); suggested start 113°F (45°C), stop 109°F (43°C)

Better Than 1st Gen: Built for Unattended 24/7 Production

- Smart Auto-Drain System: Industrial water-gas separator and auto-drain float eliminate the hassle of manually monitoring and emptying condensate collection bottles
- Multi-Sensor 24/7 Safety Suite: Built-in optical water-level sensing, cold-end anti-frost detection, and thermal tracking ensure reliable, uninterrupted multi-day printing
- Boosted Airflow & 2× Performance Mode: Delivers higher base airflow (~12 L/min) for enhanced heat dissipation, plus a long-press 2× Performance Mode for high-demand jobs
- Sleek Injection-Molded Enclosure: Upgraded from the 1st-gen 3D-printed shell to a durable, precision-finished ABS injection-molded housing for a sleek industrial look

Package Includes

- MartilloTech power adapter × 1 (AC 100–240V in, 12.0V 5.0A 60W out)
- 21.7 in (550 mm) anti-fouling coated silicone tubes × 2
- Intake tee × 1
- Relief / vent fitting × 1
- 13.8 in (350 mm) black PTFE sealing tube × 1
- 21.7 in (550 mm) white PTFE tube × 1
- Nylon cable ties × 6
- Connecting air tubes × 4
- Installation fitment guide × 1
- User manual × 1
- Not included: H2 intake 5-way kit (H2D / H2C), X2D intake 5-way kit, magnetic A1 front cover (A1 / A1 mini), temperature-controlled outlet

Installation Guide

Explore Precision Upgrades for Your Bambu Lab

Explore Precision Upgrades for Your Bambu Lab

Explore Precision Upgrades for Your Bambu Lab

Explore Precision Upgrades for Your Bambu Lab

FAQs about CoolDry Pro 2 Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

How do auto-drain and optical water-level sensing work?

2nd-gen CoolDry Pro cools room air, then an industrial water-gas separator removes condensate through a 50-micron filter and an auto-drain float so the unit can run multi-day / 24-7 jobs without emptying a bottle on a timer. Optical water-level sensing is the fail-safe: if the drain path clogs, the unit is designed to stop overflow from reaching printer components. An optional temperature-controlled outlet (sold separately) can auto start around 113°F (45°C) and stop around 109°F (43°C) so the pump is not running when the chamber is cold.

What printers does it fit, and what extra parts do I need?

CoolDry Pro is designed for Bambu Lab A1 / A1 mini, H2S / P2S / P1S / X1C, and X2D / H2D / H2C. P2S / P1S / X1C use the included intake tee and tubes. H2D / H2C need the H2 intake 5-way kit; H2S uses the included 3-way and does not need the 5-way. X2D needs the X2D intake 5-way kit — on X2D the right nozzle is remote-extruded, so CoolDry Pro mainly protects the filament path; for PLA above about 118°F (48°C) chamber, a more heat-tolerant PLA such as Polymaker PLA is recommended. A1 / A1 mini need the magnetic A1 front cover. Confirm toolhead travel is not restricted by tubing at all four corners before printing.

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!
    testimonial author avatar
    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!
    testimonial author avatar
    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!
    testimonial author avatar
    RayRobert
    Project manager
CoolDry Pro 2 Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

CoolDry Pro 2 Extruder Cooler - Dry Cold Air Hotend Cooling for Enclosed 3D Printers

$259.90
$259.90