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RYOBI 680 Series
RYOBI 684


 RYOBI 684

Feature Spesifications

Efficient job changeover improves profitability
An optimized digital workflow gives you total control over production and quality
Various Innovative Mechanisms Guarantee High-Quality Printing
Boost Productivity and Add Value
Ryobi's Fully Automatic Convertible Perfecting Device Boosts Productivity
Offering a Wealth of Advanced Functions in a Compact Body (684AJ, 684P-AJ)


Efficient job changeover improves profitability

  

RYOBI Semiautomatic Plate Changer

The RYOBI Semi-RPC allows plates to be changed quickly and accurately. The operator merely sets the plate on the positioning pins and presses the button. A plate bending device is unnecessary as there is no need to bend the leading edge or the tail edge of the plate.

Automatic Cleaning Devices
Automatic blanket cleaning device, Automatic impression cylinder cleaning device (option), Automatic ink roller cleaning device (option)


  

Paper Size and Impression Pressure Presets(option)
The RYOBI 680 Series allows the operator to enter preset values for paper size and thickness using the touch-panel display. Positions of the feeder head and delivery section guides* as well as pull side guides* can be preset. Plus, an impression pressure preset system is also available.
*Standard equipment: The pull side guide preset system, Options: Feeder head preset,
delivery section preset, and impression pressure preset systems

RYOBI Program Inking

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An optimized digital workflow gives you total control over production and quality

RYOBI PCS-G Printing Control System

Almost the entire operation flow from make-ready through printing _ including paper changing, cleaning, printing settings, registration, color adjustment, water control, and other operations - can be centrally controlled by the RYOBI PCS-G printing control system.
Image Area Calculating Software
[Ink Volume Setter/Ink Volume Setter-CIP4 (PPF)] (option)
Printing Density Control System [RYOBI PDS/RYOBI PDS-E/RYOBI PDS-E AUTO* /
RYOBI PDS-E Spectro/RYOBI PDS-E Spectro AUTO* ] (option)
*RYOBI 680-AJ Series: Not available
MIS Connection Software (for CIP4-JDF) (option)
Management System for Printing Presses [RYOBI Print Job Manager] (option)
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Various Innovative Mechanisms Guarantee High-Quality Printing

Double-Diameter Printing Mechanism
The printing unit consists of a double-diameter impression cylinder and a double-diameter transfer drum. These cylinders, which have a large curvature ratio, transport paper with minimum flapping, providing stable paper transport even when printing on heavy stock.


  

RYOBI-matic Continuous Dampening System
The RYOBI-matic continuous dampening system assures a uniform dampening supply on the plate surface to reproduce sharp halftone dots, glossy solids and finely detailed text. Starting is quick and this system is designed to minimize wasted sheets.

  

RYOBI-matic-D / RYOBI-matic-D Remote Continuous Dampening System (option)
These dampening systems substantially reduce hickeys on plates by adopting a drive mechanism for the water form roller that creates a rotational speed difference between the water form roller and plate cylinder.
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Boost Productivity and Add Value


Coating unit and Dryer systems

  

Inline Coating System

When the varnish coating system is not being used, the entire coating cylinder and anilox roller can be easily slid upward at the touch of a button to prevent marking on the sheet. Then, a safety guard between the main press unit and coating cylinder allows maintenance work (such as cleaning the coating cylinder or mounting blankets) even while the press is in operation. This enables faster switchover to the next printing job.


Coating Unit
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Ryobi's Fully Automatic Convertible Perfecting Device Boosts Productivity

Fully Automatic Convertible Perfecting Device
Switching between straight printing and perfecting can be performed remotely from the delivery side via the RYOBI PCS-G Printing Control System. The operator simply inputs the paper size and selects a printing mode from the touch panel display.

One-pass full-color perfecting RYOBI 688P/6810P
Unlike a straight printing press, no time is lost waiting for the front side to dry after printing or for paper piling when printing the back side. Printing takes only half the time, of course, compared to printing both sides with two passes on a 4-color straight printing press.
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Offering a Wealth of Advanced Functions in a Compact Body (684AJ, 684P-AJ)

Achieves Space-Saving
The RYOBI PCS-K Printing Control System is built into the press for enhanced space-saving performance. A wealth of advanced functions and automated mechanisms incorporated in the compact body contribute to higher productivity and profitability for small-lot printing.

  

Built-in RYOBI PCS-K Printing Control System

This system allows centralized control of the main operations and settings, such as ink and water volume control, printing parameter settings, fine adjustment of registration, switching to fully automatic convertible perfecting, and maintenance information. It also slides to 200 mm (7.9") to enable easy confirmation of paper delivery status.
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Specifications

Model name
684-AJ
684P-AJ
682
682P
684
684P
685
685P
686
686P
688P
6810P
Number of printing units
4
2
4
5
6
8
10
With Convertible Perfecting Device
-
-
-
-
-
Max. Paper size
(W x L)
686 x 508 mm (27" x 20")
Min. Paper size
(W x L)
Straight printing: 279 x 200 mm (10.98" x 7.87")
Perfecting: 279 x 279 mm (10.98" x 10.98")
Max. Printing Area
(W x L)
Straight printing: 660 x 495 mm (25.98" x 19.49")
Perfecting: 660 x 488 mm (25.98" x 19.21")
Paper Thickness *1
Straight printing: 0.04-0.6 mm (0.0016" - 0.024")
Perfecting: 0.04-0.4 mm (0.0016" - 0.016")
Printing Speed *2
3,000-15,000 S.P.H.
Plate Size
650 x 550 mm (25.59" x 21.65") [Standard]
670 x 550 mm (26.38" x 21.65") [Max]
Feeder Pile Capacity
800 mm (31.50")
Delivery Pile Capacity
540 mm (21.26")
925 mm (36.42")
Design and specifications are subject to change without notice.
*1 There are some limitations to print thick paper depending on paper types.
*2 Local conditions, ink, stock, and printing plate types, and printing quality required will affect the printing speed.