Guardian II Modular Gas Dryer

Added: November 02, 2011

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guardian ii
®

Modular Gas Dryer for Graphics

Features

• Belt width:
122 to 213 cm
(48" to 84")

• Heat chamber length: 183 cm (72")

• CoolSkin™ technology

Guardian II, the industry’s most efficient, innovative, and affordable
high-production graphic gas dryer, is available in belt widths from 122
to 213 cm (48" to 84"). Not only does it have the highest production
capacity in its class, it’s also the most energy efficient. Heavy-duty
thermal insulation prevents heat from migrating into the workplace;
CoolSkin™ technology leaves the dryer skin cool to the touch; and
exhaust gasses heat incoming air. Fast cure rates and high product
throughput maximize dryer capacity and minimize per-unit cost.
Available in liquid propane (LP) or Natural Gas (NG), the highperformance burners are designed with excess capacity that far
exceeds consumption rates under normal operating conditions.
Separate blowers control combustion, circulation, and exhaust.
A high-volume forced air system quickly brings the chamber
to the desired temperature, speeding the start of production.
Process temperatures and set temperatures are controlled

digitally. Temperature consistency is ensured by a fuzzy-logic
controller, which responds to ambient temperature changes by
keeping chamber heat within 1° of target temperature at the
thermocouple. A tower light shows when temperatures are within
user-set parameters. When readings fall outside those settings, a
temperature monitor issues visible and audible alarms.
Entry and exit openings are adjustable, and large anodized
aluminum rollers are crowned for positive belt tracking. Digital
speed readout makes it easy to duplicate settings. M&R’s automatic
shutdown sequence keeps the blower and belt running until the
chamber has cooled. Guardian II options include high speed
conveyors; split belt conveyors with independent variable speed
drives and direction; Switchback™ & Vitran II™ UV Curing Modules;
and ambient air and refrigerated air cooling units.

www.mrprint.com
USA: 800-736-6431 • Outside USA: +847-967-4461

guardian ii
®

STANDARD FEATURES
Air Handling

• AC variable-speed circulation blower
• Blowers hold down even the lightest substrates
• Enhanced airflow accelerates drying/curing
• Exhaust Blower evacuates up to 42 475 l/min (1500 cfm)
• Heat efficiency system reduces operating expenses by
using outgoing combustion gas to heat incoming air
• High-volume circulation blower reduces energy costs
• Stainless steel filters slide out for easy cleaning
• Three separate dedicated blowers (combustion,
circulation & exhaust)

Certification

• CE & UL compliant: Built to specifications established
by the European Committee for Standardization® (CE)
and Underwriters Laboratories® (UL)
• CSA Certified and built to meet or exceed AGA & CGA
standards

Control Center

• Automatic shutdown sequence keeps the blower and
belt running until the chamber has cooled
• Control panel rotates for visibility and access
• Digital keypad with digital display
• Temperature monitor issues visible and audible alarms
when readings fall outside user-specified parameters
• Tower light indicates when temperatures are within
user-set tolerances

Conveyor System

• Heavy-duty thermal insulation prevents heat from
migrating into the workplace
• Pressurized vector air knives provide consistent and
uniform temperatures throughout the drying chamber
• Process temperature and set temperature are
displayed and controlled digitally

• Conveyor belt is made of heat-resistant,
Teflon®‑coated fiberglass
• Digital belt speed readout makes it easy to duplicate
speed settings
• Driven by a reliable, heavy-duty, variable-speed DC motor
• Large anodized aluminum rollers are crowned for
positive belt tracking
• Standard belt speed: 91 to 1554 cm (3' to 51') per minute

Heat Chamber

• Burners are available for liquid propane (LP) or
natural gas (NG)
• Direct-fired burner is maximum-rated at 400 000 Btu
• Double-wall construction
• Galvanized steel interior
• Interior air distribution system ensures uniformity and
consistency of temperature
• Modular gas train simplifies maintenance

Design & Construction

• Adjustable entry/exit openings
• Air-cooled cabinet ensures long life for electrical
components
• Bearings are designed for high speeds and high
temperatures
• Circuit breakers allow easy reset
• Low-profile design makes it easier to see over the dryer
• Modular design and specialized fasteners make it
easy to attach additional heat chamber units

Productivity

• Guardian II has the highest production capacity in its class

Warranty, Service & Support

Energy Efficiency

• 24-hour hotline is staffed 365 days a year
• Access to M&R’s Training Center
• One-year limited warranty

Cooling

UV Curing Modules

• Burners are designed with excess capacity that far exceeds
consumption rates under normal operating conditions
• CoolSkin™ technology leaves the dryer skin cool to
the touch
• Fast curing rates and high product throughput
maximize dryer capacity and minimize per-unit cost
• Fuzzy-logic controller ensures consistency by keeping
heat within 1° of target temperature at the thermocouple
• Guardian II is the most energy-efficient dryer in its class

OPTIONS
Conveyor System

• Available with conveyor speeds faster than the
standard rates listed
• Conveyor extension sections are available in 30 cm
(12") increments
• Split-belt model with independent drives features
reversible direction and variable speed

• Ambient air and refrigerated air cooling units

• Switchback™
• Vitran II™

Heat Chamber

• Additional 61 cm (24") sections are available
• 61 cm (24") infrared pre-heat module speeds
throughput

SPECIFICATIONS
Guardian II-48

Guardian II-60

Guardian II-72

Guardian II-84

Belt Width

122 cm (48")

152 cm (60")

183 cm (72")

213 cm (84")

Burner Width

217 cm (85.5")

248 cm (97.5")

278 cm (109.5")

309 cm (121.5")

Heat Chamber Width

160 cm (63")

191 cm (75")

221 cm (87")

251 cm (99")

Heat Chamber Length

183 cm (72")

Expansion Heat Modules

61 cm (24")

Standard Infeed/Outfeed Length

122 cm (48")

Overall Length

427 cm (14') or more

Exhaust Blower System 2, 3

25 cm (10"): 42 475 l/min (1500 cfm) @ 6 mm (1/4")

Gas Input Size

2.54 cm (1")

LP/Natural Gas Input Pressure

.93 mm Hg (5" w.c.)

Burner Input Maximum 4

400 000 Btu

Electrical Requirements 1

208/230 V, 3 ph, 20/18 A, 50/60 Hz, 8 kW
460 V, 3 ph, 9 A, 50 Hz, 8 kW

208/230 V, 3 ph, 37/35 A, 50/60 Hz, 16 kW
460 V, 3 ph, 19 A, 50 Hz, 16 kW

61 cm (24") Optional
Radiant Section 1

208/230 V, 3 ph, 15/17 A, 50/60 Hz, 5 kW
400 V, 3 ph, 9 A, 50 Hz, 5 kW

208/230 V, 3 ph, 19/21 A, 50/60 Hz, 6.2 kW
400 V, 3 ph, 11 A, 50 Hz, 6.2 kW

208/230 V, 3 ph, 21/23 A, 50/60 Hz, 7.4 kW
400 V, 3 ph, 13 A, 50 Hz, 7.4 kW

208/230 V, 3 ph, 25/27 A, 50/60 Hz, 8.5 kW
400 V, 3 ph, 14 A, 50 Hz, 8.5 kW

Shipping Weight 5

1588 kg (3500 lb)

1814 kg (4000 lb)

2041 kg (4500 lb)

2268 kg (5000 lb)

If incoming voltage differs from the voltage(s) listed in this brochure, calculate amperage accordingly.
Other electrical configurations are available: Contact The M&R Companies for details
2
Measured at the Exhaust Discharge Port
1

Static pressure
4
Normal usage varies, but is significantly lower than the stated maximum
5
Weight applies to models with a 244 cm (96") heat/expansion chamber
3

The M&R Companies 1 N. 372 Main Street, Glen Ellyn, Illinois 60137-3576 USA
USA: 800-736-6431 / 630-858-6101 / Fax: 630-858-6134 • Outside USA: +847-967-4461 / Fax: +847-967-0417
M&R Printing Equipment, Inc. and its subsidiaries (hereinafter M&R), believe the information in this advertisement to be accurate at publication, though it does not purport to list all manufacturing and specification variations, nor does
it assume liability resulting from incompleteness or inaccuracy. M&R reserves the right to change specifications without notice. M&R expressly disclaims any liability for damages, consequential or incidental, from purchase, installation,
servicing, and/or use of any product/service based upon information herein. No warranties of merchantability or fitness for a particular purpose are made or are to be implied from the information herein. No information herein may be reproduced
or used in any manner without the prior, express written consent of M&R in each case. Copyright 2005 M&R Printing Equipment, Inc. All rights reserved. 080105

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About this product brochure

From M&R Companies Amscomatic

Description Guardian II, the industry’s most efficient, innovative, and affordable high-production graphic gas dryer, is available in belt widths from 122 to 213 cm (48" to 84"). Not only does it have the highest production capacity in its class, it’s also the most energy efficient. Heavy-duty thermal insulation prevents heat from migrating into the workplace; CoolSkin technology leaves the dryer skin cool to the touch; and exhaust gasses heat incoming air. Fast cure rates and high product throughput maximize dryer capacity and minimize per-unit cost. Available in liquid propane (LP) or Natural Gas (NG), the high performance burners are designed with excess capacity that far exceeds consumption rates under normal operating conditions.

Categories
Curing & Drying Machines

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