
PT4‑4000 & PT4‑8000
4‑Zone Preheaters from Metcal
The Metcal PT4‑4000 and PT4‑8000 4‑Zone Preheaters provide powerful, uniform heat for every application
from the most delicate to the most thermally demanding.

PT4 Features
Comprehensive Four-Zone Thermal Management with Rapid Heating Efficiency
Equipped with four independent temperature zones, our preheater offers exceptional flexibility to accommodate various PCB sizes and complexities.
Its rapid heating capability minimizes downtime and enhances throughput, ensuring optimal performance across diverse applications.
Advanced Temperature Control modes with External Thermocouple Integration
Equipped with different heating modes: Power mode, Temperature control mode, and Profile modes, Metcal's new preheater can achieve precise temperature regulation through external thermocouples that monitor and adjust heat levels in real-time.
This feature prevents overheating, safeguards sensitive components, and prevents PCB delamination, enhancing the reliability and longevity of your assemblies.
Customizable Heating Profiles for Consistent and Repeatable Results
Our system offers versatile temperature control modes, including programmable profiles tailored to specific PCB requirements.
These profiles can be easily imported and exported, ensuring repeatability and consistency across multiple projects while streamlining your workflow.
Ergonomic Spring-Loaded PCB Stand with Broad Compatibility
Designed with user convenience in mind, the spring-loaded board holder securely holds PCBs of various sizes and materials, facilitating effortless insertion and removal.
This mechanism minimizes handling time, reduces the risk of damage, and enhances overall operational efficiency.
(Board Holder sold separately. See below)
User-Friendly Interface for Intuitive Operation
Featuring an intuitive interface with a clear display and straightforward controls, our preheater simplifies operation, reduces the learning curve, and increases productivity.
Operators can easily set and monitor parameters, ensuring precise control over the preheating process.
Experience the next level of precision and efficiency in PCB preheating with Metcal’s cutting-edge solution, meticulously designed to meet the evolving demands of modern electronics manufacturing.
PT4 Preheater Specifications
PT4‑4000-11 (NA/US region) |
PT4‑4000-21 (EU/UK/AP regions) |
PT4-8000‑11 (NA/US region) |
PT4-8000‑21 (EU/UK/AP regions) |
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Availability | ORDER NOW |
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ORDER AS OF |
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Input Voltage | 120 V~ 60 Hz | 230 V~ 50 Hz | 208 V~ 60 Hz, 3Φ-4W 120 V~ 60 Hz, 1Φ |
380 V~ 50 Hz, 3Φ-4W 230 V~ 50 Hz, 1Φ |
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Power | 1700 W | 2800 W | 4000 W | 4600 W | ||||||||||||||||||||
Controllable Temperature Range | 50 °C ~ 250 °C 122 °F ~ 482 °F |
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Surface Temperature Range | 25 °C ~ 600 °C 77 °F ~ 112 °F |
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Number of Heating Areas | 4 | |||||||||||||||||||||||
Heating Area (per zone) | 4.7" x 4.7" 120 mm x 120 mm |
7.1" x 7.9" 180 x 200 mm |
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Total Heating Area | 9.4" x 9.4" 240 x 240 mm |
14.2” x 15.8” 360 x 400 mm |
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Temperature Sensors | 4 K‑Type | |||||||||||||||||||||||
Temperature Units | °F / °C | |||||||||||||||||||||||
Heating Power Display | 0% ~ 100% | |||||||||||||||||||||||
Temperature Compensation | ±122 °F / ±50 °C | |||||||||||||||||||||||
Real‑time Display | Temperature & Power | |||||||||||||||||||||||
Zone Heating Control | On/Off | |||||||||||||||||||||||
Profile Management | Learning/Import/Export | |||||||||||||||||||||||
Heating Modes | Temperature/Power/Profile | |||||||||||||||||||||||
Password Protection | Yes | |||||||||||||||||||||||
Sound Function | On/Off | |||||||||||||||||||||||
Temperature Lock | On/Off | |||||||||||||||||||||||
Languages | English, French, German, Spanish, Chinese, Japanese, Korean | |||||||||||||||||||||||
USB | Profile Import/Export Functionality | |||||||||||||||||||||||
Display | 2.3" / 58 mm Color | |||||||||||||||||||||||
Operating Environment | 32 °F ~ 104 °F / 0 °C ~ 40 °C, < 85% RH | |||||||||||||||||||||||
Dimensions (L x W x H) | 12.6” x 16” x 2.9” 320 x 406 x 73 mm |
24.1” x 17.7” x 2.9” 612 x 450 x 73 mm |
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Weight (Main Unit) | ≈ 10.8 lbs / 4.9 Kg | ≈ 20.2 lbs / 9.1 Kg |
BH-4000 & BH-8000 Board Holders

Preheater and Board Holder sold separately
BH‑4000 | BH‑8000 | |
Dimensions | 16.65" x 16" x 4" 423 x 406 x 102.5 mm |
23" x 20.7" x 4" 584 x 526 x 102.5 mm |
Maximum PCB Size | 10" x 10" 258 x 258 mm |
15" x 16.5" 378 x 418 mm |
Adjustable Parts | Adjustable in all directions (front, back, left, right) | |
Height Adjustment | Three levels of adjustable height | |
Clamping Spring Force | 3.3 lbs 1.5 kg |
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Locking Mechanism | Supported | |
PCB Thickness Range | 0.02" ~ 0.12" 0.5~3 mm |
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Accessories | (1) Screwdriver, (1) Grounding Wire | |
Compatible Preheater | PT4‑4000 or similar | PT4‑8000 or similar |
Part Numbers
PART NUMBER | DESCRIPTION |
PT4-4000-11 | 4-Zone Preheater, 9.4" x 9.4" (240 x 240 mm) Heating Area, 115 V~60 Hz |
PT4-4000-21 | 4-Zone Preheater, 9.4" x 9.4" (240 x 240 mm) Heating Area, 230 V~50 Hz |
PT4-8000-11 | 4-Zone Preheater, 14.2” x 15.8” (360 x 400 mm) Heating Area, 120 V~60 Hz (1Φ), 208 V~60 Hz (3Φ-4W) Available to Order September 15th, 2025 |
PT4-8000-21 | 4-Zone Preheater, 14.2” x 15.8” (360 x 400 mm) Heating Area, 230 V~50 Hz (1Φ), 380 V~50 Hz (3Φ-4W) |
BH-4000 | Board Holder, max. PCB size 10" x 10" / 258 x 258 mm, adjustable in all directions, ESD Safe |
BH-8000 | Board Holder, max. PCB size 15" x 16.5" / 378 x 418 mm, adjustable in all directions, ESD Safe |
Learn more about PT4-4000 & PT4-8000 Preheaters -
Contact Metcal to set up a demo
Corporate Headquarters
(United States)
OK International
10800 Valley View Street
Cypress, CA 90630
Tel: 1-714-230-2398
Fax: 1-714-230-2393
Email: NA-CustCare@okinternational.com
United Kingdom
OK International
Eagle Close, Chandlers Ford
Hampshire, S053 4NF
U.K.
Tel: +44 (0) 23-8048-9100
Email: europe@okinternational.com
China Corporate Office
OK International
4th floor East, The Electronic Building
Yanxiang Industrial Zone
High Tech Road, Guangming New District
Shenzhen, P.R.C
Tel: +86-755-2327 6366
Fax: +86-755-2329 5492
Email: china@okinternational.com
Copyright 2024, Metcal | OK International, a Dover Company