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• No.2591
• [JIS]P-8207-2009
• [TAPPI]
• [ISO]

Like the No.2590, this tester screens pulp fibers through screens into groups by fiber length. It is used for checking the condition of fiber length distribution and for measuring changes of fiber lengths caused by beating. Compared to the four-tank type, this model provides easier operation and more accurate measurements, and is the most suited type of tester for controlling the beating process at a plant.

• No.2593
• [JIS]
• [TAPPI]T233cm-95
• [ISO]

It is widely recognized that the fiber length is an essential pulp property. One of measuring method is sieving pulp slurry through wire cloth of appropriate mesh sizes. Like the JIS method, this tester classifies fibers into groups of certain lengths, weighs fibers in the respective tanks, and provides distribution of fiber lengths. It has various advantages including superior accuracy, reproducibility, operability, quick processing, etc.

• No.2598
• [JIS]
• [TAPPI]JTAPPI?11-2000
• [ISO]

This tester measures the resin content in pulp that may cause pitch trouble. The tester consists of an agitator fabricated with wire cloth, a pulp container and a temperature-adjustable bathing tank. As the agitator rotates in pulp slurry, the resin content is deposited on the triangular wire cloth. To calculate the pitch volume, the deposits are dissolved in a solvent, and the resin content is separated using an extractor, dried and then weighed.
Referential standard J.TAPPI No.11

• No.2605
• [JIS]
• [TAPPI]
• [ISO]

In the pulp manufacturing process, it is required to have a cooking liqueur permeate to the center of the wood as quickly as possible to enable quick and unified digestion. For that purpose, this chipper is designed for laboratory use to make wood chips of unified dimensions, helping prepare various chips containing different kinds of resin. In operation, wood is pushed diagonally against the rotary disc provided with a cutting knife, which cuts off the tip of the wood. Then, produced chips are air-blown upward to the chip screens. Then, the chips are classified through two-step vibrating screens so that complying chips are sent to the chip collector rack and large-sized ones are conveyed upward on a belt to be thrown into the chipper's slot again.

• No.2607
• [JIS]
• [TAPPI]JTAPPI?2-2000
• [ISO]

This dryer is used for measuring the moisture content of wood chips. Chips are placed inside the dryer for a certain length of time so that moisture content may evaporate. The moisture content is checked based on the difference between the constant mass weight of the chips and the weight before drying. In order to maintain unified temperature distribution inside the dryer, a forced circulation system is adopted for heated air, ensuring measurement of the moisture content after chips are evenly dried.
Referential standard: J.TAPPI No.2

• No.2606-I
• [JIS]
• [TAPPI]UM21,JTAPPI?4-2000
• [ISO]

This equipment classifies wood chips into different sizes, using screens. It plays an essential production management role in making chips, ensuring production of chips of a unified size required, which contributes to securing of adequate digestion through maintenance of the chipper knife condition and efficient operation of the chip breaker and screens. It is also an important tester in commercial transactions that helps quality identification when purchasing wood chips. Screens of various types are assembled in the ascending order of the opening diameters. Chips are input into the screen with the largest opening first, and then they are vibrated to drop them through the screen to lower screens. Thus, chip specimens are classified by size to leave only small splinters collected in the bottom trash retainer at the end. You can check the distribution of chip sizes by weighing both the specimens left on the respective screens and in the trash retainer.
Referential standards: J.TAPPI No.4

• No.2606-II
• [JIS]
• [TAPPI]
• [ISO]

Like the mode I, this equipment is also used for chips classification. Compact in size, this classifier provides superior operability. The screen box allows various combinations of holes with different shapes including round ones and slits. The box can also be mounted or removed easily.

• No.2610
• [JIS]
• [TAPPI]
• [ISO]

The pulp manufacturing processes are roughly classified under three categories: timber cut-up, pulping and refining. Among these, the pulping process is the most important. According to the pulping method, produced pulp is classified as DP, KP, SP, SCP, GP or MP. Among these, the KP type is the most commonly used in paper manufacturing, and is produced in the greatest volume, preferred because of its quality and cost advantages. Unlike the GP or MP method using mechanical shearing force, the KP method mainly resorts to chemical treatment using a chemical agent (mix liquid of sodium hydrate and sodium sulfide solutions). Autoclaves are used in the pulping process for testing and studying digestion of various wood chips and yield measurement as well as bleaching/deinking of used paper, collection of chemicals and treatment of waste cooking liquid. This autoclave is easy to handle since the chamber and lid are made of stainless steel that can resist chemical corrosion even after long years of service.

• No.2616
• [JIS]
• [TAPPI]
• [ISO]

This autoclave is for timber chip cooking tests in a university laboratory, etc. As such, the cooking chamber is small-sized and can be heated on a gas burner, which is suited for a simple pulping experiment. By removing the fixing pins supporting the chamber body, it can be shaken sideways, helping even permeation of the liquor into chips.

• No.2611
• [JIS]
• [TAPPI]
• [ISO]

This autoclave is used in digestion experiments on various wood chips. In order to strictly comply with the temperature setting according to a preset cooking schedule, a thermometer device is installed on the chamber body for program-based control, enabling automatic control via the control unit. This mechanism significantly contributes to higher accuracy of digestion experiments, improved reproducibility and labor saving.