{"id":2943,"date":"2026-02-05T01:35:00","date_gmt":"2026-02-05T01:35:00","guid":{"rendered":"https:\/\/www.materialstests.com\/products\/djd-beating-and-freeness-tester\/"},"modified":"2026-02-05T01:35:00","modified_gmt":"2026-02-05T01:35:00","slug":"djd-beating-and-freeness-tester","status":"publish","type":"products","link":"https:\/\/www.materialstests.com\/vi\/products\/djd-beating-and-freeness-tester.html","title":{"rendered":"DJD Beating and Freeness Tester"},"content":{"rendered":"

1. Introduction of Beating and Freeness Tester<\/h2>\n

Beating and Freeness Tester<\/strong>\u00a0is used for the determination of the drainability of a pulp suspension in water in terms of the Schopper-Riegler (SR) number.<\/p>\n

The Schopper-Riegler test is designed to provide a measure of the rate at which a dilute suspension of pulp may be dewatered. It has been shown that the drainability is related to the surface conditions and swelling of the fibres, and constitutes a useful index of the amount of mechanical treatment to which the pulp has been subjected
\nIn principle, this method is applicable to all kinds of pulp in aqueous suspension. However, in practice, the Schopper-Riegler test provides acceptable results only if a sufficiently dense mat of fibres is formed on the wire screen. For this reason, the test is not recommended for some extremely short-fibred pulps, such as those from well-beaten hardwoods, as most of the fibres will pass through the wire screen, resulting in anomalous reduction of the SR number. The most reliable results are obtained within the range of 10 to 90 SR number.<\/p>\n

\"DJD<\/p>\n

2. Advantages<\/h2>\n

non-corrosive<\/p>\n

low maintenance<\/p>\n

Easy to use and clean<\/p>\n

Stainless steel<\/p>\n

Robust design<\/p>\n

 <\/p>\n

3. Principle<\/p>\n

Draining, through a fibre mat formed during the test on a wire screen, of a given volume of pulp in aqueous suspension into a funnel provided with a bottom and a side orifice. Collection of the discharge from the side orifice in a measuring cylinder, graduated in Schopper-Riegler numbers.<\/p>\n

\"DJD<\/p>\n

4. Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/h2>\n
\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n
DJD-01<\/td>\n<\/tr>\n
Measuring Range<\/td>\n1~100 SR<\/td>\n<\/tr>\n
Division Value of Measuring Cylinder<\/td>\n1 SR<\/td>\n<\/tr>\n
Orifice Draining Time<\/td>\n149\u00b11s<\/td>\n<\/tr>\n
Residual Volume<\/td>\n(7.5~8.0)ml<\/td>\n<\/tr>\n
Sealing Cone Raising Speed<\/td>\n100\u00b110mm\/s<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc<\/td>\n450*250*1200mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n
DJD-02<\/td>\n<\/tr>\n
Measuring Range<\/td>\n1~100 SR<\/td>\n<\/tr>\n
Operation<\/td>\nAuto Release<\/td>\n<\/tr>\n
Sealing Adjustment<\/td>\nAuto Sealing<\/td>\n<\/tr>\n
Side Orifice Adjustment<\/td>\nAdjustment button equipped, random setting of residual volume<\/td>\n<\/tr>\n
Orifice Draining Time<\/td>\n149\u00b11s<\/td>\n<\/tr>\n
Residual Volume<\/td>\n(7.5~8.0)ml<\/td>\n<\/tr>\n
Sealing Cone Raising Speed<\/td>\n100\u00b110mm\/s<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc<\/td>\n410*360*760mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

 <\/p>\n

\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n
DJD-03<\/td>\n<\/tr>\n
Measuring Range<\/td>\n1~100 SR<\/td>\n<\/tr>\n
Display<\/td>\nDigital, drainage curve analysis<\/td>\n<\/tr>\n
Ngh\u1ecb quy\u1ebft<\/td>\n0.1 SR<\/td>\n<\/tr>\n
Operation<\/td>\nAuto Release<\/td>\n<\/tr>\n
Sealing Adjustment<\/td>\nAuto Sealing<\/td>\n<\/tr>\n
Side Orifice Adjustment<\/td>\nAdjustment button equipped, random setting of residual volume<\/td>\n<\/tr>\n
Orifice Draining Time<\/td>\n149\u00b11s<\/td>\n<\/tr>\n
Residual Volume<\/td>\n(7.5~8.0)ml<\/td>\n<\/tr>\n
Sealing Cone Raising Speed<\/td>\n100\u00b110mm\/s<\/td>\n<\/tr>\n
K\u00edch th\u01b0\u1edbc<\/td>\n410*360*760mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

5. Ti\u00eau chu\u1ea9n<\/h2>\n

ISO 5267-1, GB\/T 3332, QB\/T 1054<\/p>\n

<\/h1>\n

\"DJD<\/p>\n

6. C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

What is the Schopper-Riegler number scale?<\/strong>
\nThe scale on which a discharge of 1 000 ml corresponds to a SR number of zero and zero discharge to a SR number of100.<\/p>\n

What is \u2018stock\u2019 in pulp beating freeness test?<\/strong>
\naqueous suspension of disintegrated pulp.<\/p>\n

 <\/p>\n

N\u1ebfu qu\u00fd kh\u00e1ch c\u00f3 nhu c\u1ea7u mua h\u00e0ng, xin vui l\u00f2ng\u00a0li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i<\/a>\u00a0v\u00e0\u00a0Cell Instruments<\/a>\u00a0s\u1ebd mang \u0111\u1ebfn cho qu\u00fd kh\u00e1ch nh\u1eefng s\u1ea3n ph\u1ea9m l\u00e0m qu\u00fd kh\u00e1ch h\u00e0i l\u00f2ng.<\/p>\n

\"DJD<\/a><\/p>\n

N\u1ebfu qu\u00fd kh\u00e1ch mu\u1ed1n bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 s\u1ea3n ph\u1ea9m n\u00e0y, xin vui l\u00f2ng li\u00ean h\u1ec7 v\u1edbi ch\u00fang t\u00f4i. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m ph\u1ed5 bi\u1ebfn kh\u00e1c m\u00e0 ch\u00fang t\u00f4i g\u1ee3i \u00fd cho qu\u00fd kh\u00e1ch:\u00a0Tissue Thickness Tester<\/a><\/p>","protected":false},"excerpt":{"rendered":"

1. Introduction of Beating and Freeness Tester Beating and Freeness Tester\u00a0is used for the determination of the drainability of a pulp suspension in water in terms of the Schopper-Riegler (SR) number. The Schopper-Riegler test is designed to provide a measure of the rate at which a dilute suspension of pulp may be dewatered. It has […]<\/p>","protected":false},"featured_media":0,"parent":0,"template":"","meta":{"_acf_changed":false},"products-categories":[1468],"productstags":[1492],"standard-category":[],"class_list":["post-2943","products","type-products","status-publish","hentry","products-categories-paper-board-tester","productstags-torque-test-for-caps-and-closures"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/products\/2943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/products"}],"about":[{"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/types\/products"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/products\/2943\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/media?parent=2943"}],"wp:term":[{"taxonomy":"products-categories","embeddable":true,"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/products-categories?post=2943"},{"taxonomy":"productstags","embeddable":true,"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/productstags?post=2943"},{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.materialstests.com\/vi\/wp-json\/wp\/v2\/standard-category?post=2943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}