Home > Product > Heat Pump Impingement (Imperial) Dryers

Introduction

Heat Pump Impingement Dryers, also referred to as Imperial dryers, use arrays of high-velocity air jets directed perpendicular to a moving product surface to strip surface moisture rapidly and uniformly. Rather than relying on ambient convection passing gently over the material, impingement jets punch through the boundary layer of still air that clings to a wet surface, dramatically increasing the heat and mass transfer coefficient at that surface. When this jet system is coupled with a heat pump air-handling circuit, the same conditioned, dehumidified air is recirculated through the jet nozzles, evaporator and condenser in a closed loop, giving the combined benefits of impingement drying’s speed with the heat pump’s energy efficiency and tight humidity control. This is the technology of choice where the product being dried is a continuous web, sheet, coated substrate or flat-format item, since the jet nozzle banks can be arranged above and below the product to dry both faces simultaneously and evenly, avoiding the curling, warping or uneven moisture profile that slower convective methods can produce on thin or coated materials.

Why Choose Kerone Heat Pump Impingement (Imperial) Dryers

Kerone engineers its Heat Pump Impingement Dryers around the specific web width, line speed, coating weight and moisture removal target of your process rather than offering a fixed nozzle geometry. Our design team calculates jet velocity, nozzle-to-product distance and nozzle pitch for each installation to achieve uniform drying across the full web width without over-drying the edges or under-drying the centre, a common failure point in poorly engineered impingement systems. Because Kerone builds the heat pump refrigeration circuit alongside the impingement air-handling system as a single integrated unit, customers get one point of engineering accountability for airflow, humidity, temperature uniformity and energy performance rather than a bolted-together retrofit. With decades of experience serving textile, paper, packaging and coating industries, Kerone also understands the line integration requirements around tensioning, web guiding and interfacing with upstream coating or printing stations, so the dryer is specified as part of your production line, not as a standalone box. Kerone also pays close attention to make-up air balancing and pressure control within the drying enclosure, since poorly balanced impingement systems can pull ambient air in through seals and disturb the humidity profile the heat pump is working to maintain, undermining both energy performance and drying uniformity if left unaddressed.

Types and Features of Heat Pump Impingement (Imperial) Dryers

Kerone offers Heat Pump Impingement Dryers in single-sided and dual-sided jet configurations, with dual-sided nozzle banks recommended wherever the product must be dried evenly on both faces without repositioning. Nozzle arrays can be fixed-pitch for uniform web materials or zoned into independently controllable sections where different areas of a wider web carry different coating weights or moisture loads. For narrower or specialty products, slot nozzle configurations are available in place of round jet arrays to deliver a continuous curtain of air rather than discrete jet points, which suits certain film and foil applications. The heat pump circuit is available in single-stage or multi-stage refrigeration depending on how much dehumidification the specific coating or substrate moisture load requires, and each configuration can be built as a standalone module or as multiple zones in series for progressive drying stages. Where line speed varies across different product runs, variable-frequency drive control on the recirculation fans allows jet velocity to be adjusted without changing nozzle hardware, giving operators flexibility to fine-tune drying intensity for lighter or heavier coating weights on the same equipment.

Key Features

  • High-velocity jet impingement penetrates the surface boundary layer for rapid, uniform moisture removal
  • Dual-sided nozzle banks dry both faces of webs, sheets and coated substrates simultaneously
  • Closed-loop dehumidified air recirculation cuts specific energy consumption versus open-loop hot air systems
  • Zoned nozzle control allows differential drying across web width for variable coating weights
  • Precise temperature and humidity control prevents curling, cracking or uneven gloss on coated products
  • Modular in-line design integrates directly with coating, laminating or printing production lines
  • Stainless steel construction and washdown-capable design suited to food-contact and hygienic applications
  • Reduced exhaust volumes and lower ambient heat load in the plant compared to conventional hot-air dryers

Powered by AI, ML & IoT

Future-Ready Engineering Driven by AI & IoT

Our advanced AI, ML, and IoT technologies, this solution delivers smarter automation, real-time insights, and predictive intelligence to enhance efficiency and drive future-ready growth.

Real-Time Monitoring & Control

Continuous tracking of process parameters with instant adjustments.

Predictive Maintenance

Intelligent fault detection to prevent failures before they occur.

Adaptive Process Optimization

Dynamic tuning of operations for maximum output and efficiency.

Cloud Dashboards & Analytics

Unified access to real-time insights and performance trends.

Energy & Resource Savings

Smarter utilization of energy to cut costs and reduce waste.

Secure IoT Connectivity

Encrypted data flow with seamless integration across plant systems.

Applications of Heat Pump Impingement (Imperial) Dryers

Kerone’s Heat Pump Impingement (Imperial) Dryers are extensively used in industries handling continuous webs, sheets and coated products. Typical applications include:
    • Textile fabric drying and heat-setting after dyeing, printing or finishing processes
    • Coated and laminated paper and board drying in packaging production
    • Printed label, tag and flexible packaging film drying after ink or varnish application
    • Non-woven fabric drying for hygiene, filtration and technical textile products
    • Battery electrode coating drying where uniform moisture and thickness are critical
    • Adhesive tape and pressure-sensitive label stock drying
    • Leather and synthetic leather surface drying after coating or finishing
    • Photographic, specialty and technical paper drying requiring tight moisture tolerance

Seamless Export Connections Global & Local

Our Global Footprint in Industrial Excellence

Delivering world-class industrial and process solutions across countries with precision, innovation, and reliability.

PeruPeru
ChileChile
ArgentinaArgentina
MexicoMexico
ColombiaColombia
BrazilBrazil
USAUSA
CanadaCanada
United KingdomUnited Kingdom
FranceFrance
GermanyGermany
SpainSpain
ItalyItaly
NetherlandsNetherlands
SwedenSweden
SwitzerlandSwitzerland
PolandPoland
PortugalPortugal
IrelandIreland
CzechiaCzechia
RomaniaRomania
HungaryHungary
AustriaAustria
GreeceGreece
KazakhstanKazakhstan
UzbekistanUzbekistan
TurkmenistanTurkmenistan
AlgeriaAlgeria
EgyptEgypt
NigeriaNigeria
KenyaKenya
South AfricaSouth Africa
Saudi ArabiaSaudi Arabia
UAEUAE
IsraelIsrael
RussiaRussia
IndiaIndia
ChinaChina
JapanJapan
South KoreaSouth Korea
ThailandThailand
VietnamVietnam
MalaysiaMalaysia
SingaporeSingapore
IndonesiaIndonesia
PhilippinesPhilippines
AustraliaAustralia
New ZealandNew Zealand

Pan-India Presence. Local Expertise.

Raipur
Bilaspur
Panaji
Vasco da Gama
Gandhinagar
Ahmedabad
Surat
Chandigarh
Gurgaon
Shimla
Manali
Bengaluru
Mysore
Kochi
Pune
Mumbai
Thane
Navi Mumbai
Hyderabad
Chennai
Coimbatore
Kolkata
Lucknow
Jaipur
Udaipur
Jodhpur
Dehradun
Haridwar
Bhubaneswar

Product Gallery

Frequently Asked Questions (FAQ)

  • High-velocity jets of dried, temperature-controlled air are directed perpendicular onto the surface of a moving web, sheet, or product bed, stripping away the boundary layer of humid air that would otherwise slow evaporation.

Get Expert Assistance

India flag +91
No countries found.

✓ Thank you! We will get back to you shortly.

Get a Custom Quote Today

Kerone’s custom-designed heating and processing solutions are built to meet the demands of your growing operations. Whether you’re upgrading equipment, expanding production, or need a tailor-made solution

Contact Us

India flag +91

Inquiry Received!

Thank you for reaching out. Our team will contact you within 24 hours.