CHALLENGER® II & II OS Automatic Screen Printing Press

Challenger® II and Challenger® II OS are M&R’s most affordable large-format high-performance automatic screen printing presses. Designed for quick setups and high-speed production, they’re loaded with timesaving, output-enhancing features, making them outstanding performers in any screen printing shop. Challenger II is available in 10, 12, 14, 16, and 18-color models with a 50 x 70 cm (20” x 28”) maximum image area. Challenger II OS is available in 8, 10, and 12-color models with an oversize 70 x 100 cm (28” x 41”) maximum image area, and all Challenger II OS models feature large, heavy-duty pallet support arms and oversize pallet leveling brackets for exceptional rigidity and stability on cut-piece printing. All Challenger II automatic screen printing machines feature servo-driven indexers, electric printheads, and multiple print-stroke capability.

Challenger II and Challenger II OS presses are compatible with most screen registration systems, including M&R’s Tri-Loc® and Double Tri-Loc®. Standard pneumatic screen clamps hold frames tight and allow rapid screen loading. Standard features include independent squeegee & floodbar speed adjustments; adjustable rear screen holders; and independently-set and calibrated squeegee and floodbar angles. Calibrated pressure adjustments offer the ultimate in control. Independent print, reset, and print/flood speed controls on each printhead make setup easy. Challenger II/II OS screen printing presses include user-friendly LCD touchscreen control panels with extensive onboard self-diagnostics, real-time production data, and easy print parameter adjustment. The independent print-start/print-finish setting saves time by automatically activating and stopping printheads at the beginning and end of production runs.

The tool-free pallet locator system, quick release pallet locks, digital squeegee/floodbar speed display, and enhanced front micro-registration adjustments simplify press operation, and central off-contact permits fast adjustment of all stations simultaneously. M&R’s Revolver Print Program™ automatically operates individual printheads in programmed sequence and allows multiple flashing without losing a printing position. M&R’s Transformer Printheads give standard Challenger II 12, 14, 16, and 18-color screen printing machines a 100 cm (41”) print stroke without increasing press diameter. For example, Transformer Printheads enable the standard Challenger II press to print oversize and all-over images up to 94 x 99 cm (37” x 39”) on alternating printheads. Challenger II and Challenger II OS options include M&R’s Optical No-Shirt Detector, which minimizes the misprints and press stoppage that result from improper T-shirt loading. Ruggedly built and loaded with features, Challenger II and Challenger II OS are M&R’s most affordable high-production automatic screen printing presses.

STANDARD FEATURES

CAROUSEL/INDEXER

• Clockwise or counterclockwise rotation
• Freewheel capability

• Permits fast, incremental single-lever adjustment of all stations simultaneously

• CE Certified: Built to specifications established by the European Committee for Standardization® (CE)
• UL Listed: Built to specifications established by Underwriters Laboratories® (UL)

• Countdown program indicates when operator-set index count has been reached
• Independent print-start/print-finish setting automatically activates and stops printheads at the beginning and end of screen printing runs
• Maintenance Minder™ System alerts operators when scheduled maintenance is due
• Multiple (1-9) print stroke capability
• Onboard self-diagnostics
• Provides control of multi-print functionality
• Real-time production data
• Test print setting turns individual printheads on/off during test print cycle
• User-friendly touchscreen control panel

• Double-Index capability increases maximum image area
• Servo drives combine higher screen printing press speeds with exceptional smoothness, consistency, and longevity

• Retrieval system keeps ink in the print area

• Locator system speeds pallet changeover
• Oversize pallet leveling brackets for exceptional rigidity and stability on cut-piece printing (Challenger II OS models)
• Precise three-point pallet leveling system
• Tool-free quick release pallet locks

• Solid-aluminum, low-profile, rubber-coated screen printing pallets

• Four-point off-contact adjustment
• Independent print button on each printhead
• Independent print/flood speed controls on each printhead simplify screen printing press setup
• Independent reset button on each printhead allows operator to lower the pallets and freewheel the carousel
• Multi-print without lowering the indexer

• Compatible with M&R’s Tri-Loc® & Double Tri-Loc® Rapid Registration Systems
• Enhanced front micro-registration adjustments with visual guides
• Locking rear micro-registration

• Automatically operates individual printheads in programmed sequence and allows multiple flashing without losing a screen printing position
• Touchscreen display with simplified programming provides easy setup of the Revolver Sequencing Program

• Adjustable rear screen holders accommodate a wide variety of screen sizes
• Clamping system holds roller frames without special adapters
• Flip-up front screen holders speed setup
• Pneumatic clamps hold frames tight and allow rapid screen loading

• Angle and calibrated pressure adjustments are independently set
• Digital squeegee/floodbar speed display
• Front or rear print carriage stop position allows operator to leave screens clear or flooded (great for water-based inks)
• Independent squeegee & floodbar speed adjustments
• Pneumatic squeegee/floodbar clamps with tool-free angle adjustment
• Squeegee air regulator with a pressure gauge on each printhead
• Visual reference marks every 5 degrees simplify squeegee/floodbar angle adjustments

• Calibrated front & rear stroke length with tool-free adjustment maximizes screen printing speed

• Enable standard Challenger II automatic screen printing presses to print up to 104 cm (41") long without increasing press diameter, and to print images up to 94 x 99 cm (37” x 39”) on alternating printheads, adequate for oversize and all-over prints

• 24-hour hotline is staffed 365 days a year
• Access to M&R’s Training Center
• M&R OEM parts—including genuine M&R pallets & platens—and screen printing supplies are available online at store.mrprint.com
• Two-year limited warranty

OPTIONS

FOOT PEDAL CONTROL

• Allows indexing of the press using a foot pedal
• Skip-Shirt foot pedal feature allows operators to avoid screen printing on empty pallets

• Automatically prevents the press from screen printing on empty pallets
• Reduces misprints and minimizes press stoppage because of improperly loaded shirts

• M&R aluminum pallets and platens come in a wide range of sizes and styles 

Model Specification

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