{"id":2851,"date":"2026-10-29T11:13:41","date_gmt":"2026-10-29T10:13:41","guid":{"rendered":"https:\/\/www.ludwig-hunger.de\/product-ranges\/marine\/valve-reconditioning-by-grinding\/vkm1m\/"},"modified":"2026-11-10T14:23:19","modified_gmt":"2026-11-10T13:23:19","slug":"vkm1m","status":"publish","type":"page","link":"https:\/\/www.ludwig-hunger.de\/en\/product-ranges\/marine\/valve-reconditioning-by-grinding\/vkm1m\/","title":{"rendered":"VKM1M"},"content":{"rendered":"\t\t
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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tVKM1M\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/h2>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n
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Home<\/a> \/<\/span> Page<\/span><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n\n<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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VKM1M<\/h2>\t\t\t\t<\/div>\n\t\t
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Valve refacing machine<\/b> for valves with stem dia. up to 20 mm<\/b><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Technical Specifications:<\/h3>\n <\/td>\n

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Working Range:   <\/b>\n <\/td>\n                  \n <\/td>\n\n<\/tr>\n\n
Valve stem dia. \n <\/td>\n 4 – 20 mm\n <\/td> \n\n<\/tr>\n\n
Max. valve head dia.\n <\/td>\n 100 mm \n <\/td> \n\n<\/tr>\n\n
Valve seat angle\n <\/td>\n 19\u00b0 – 47\u00b0\n <\/td> \n\n<\/tr>\n\n
Grinding Spindle:<\/b>\n <\/td>\n  \n <\/td>\n\n<\/tr>\n\n
Grinding wheel dia. \n <\/td>\n 175 mm\n <\/td> \n\n<\/tr>\n\n
Speed at 50 Hz \n <\/td>\n 2,790 rpm \n <\/td> \n\n<\/tr>\n\n
Workpiece Spindle:<\/b>\n <\/td>\n  \n <\/td>\n\n<\/tr>\n\n
Speed at 50 Hz\n <\/td>\n 105 rpm\n <\/td> \n\n<\/tr>\n\n
 <\/b>Coolant System:<\/b>\n <\/td>\n  \n <\/td>\n\n<\/tr>\n\n
Capacity\n <\/td>\n 5 liters\n <\/td> \n\n<\/tr>\n\n
Electrical Equipment:<\/b>\n <\/td>\n  \n <\/td>\n\n<\/tr>\n\n
Supply voltage\n <\/td>\n 400 V \u00b1 10%\n <\/td> \n\n<\/tr>\n\n
(3ph 50\/60 Hz) or\n <\/td>\n 230 V \u00b1 10%\n <\/td> \n\n<\/tr>\n\n
Power consumption\n <\/td>\n 0.5 kW\n <\/td> \n\n<\/tr>\n\n
Dimensions:<\/b>\n <\/td>\n  \n <\/td>\n\n<\/tr>\n\n
Length\n <\/td>\n 620 mm\n <\/td> \n\n<\/tr>\n\n
Width\n <\/td>\n 610 mm\n <\/td> \n\n<\/tr>\n\n
Height\n <\/td>\n 450 mm\n <\/td> \n\n<\/tr>\n\n
Weight:<\/b>\n <\/td>\n  \n <\/td>\n\n<\/tr>\n\n
Net weight\n <\/td>\n 105 kg\n <\/td> \n\n<\/tr>\n\n<\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
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Features:<\/h3>

Machine Bed:<\/b>Robust cast iron body with integrated guideways for the wheelhead and the workpiece slide.<\/p>

Wheelhead:<\/b>Box-type cast iron construction with motorized grinding spindle.Proper grinding wheel guard.Infeed handwheel with wide-spread infeed scale for fine adjustment.<\/p>

Workhead:<\/b>Clamping of the valves in the workpiece spindle using precision collets.Grinding angle adjustable by swiveling the workhead.Wide-spread angle scale.A hand lever enables the advantageous traversing oscillation of the valve.<\/p>

Wheel Dressing Unit:<\/b>The dressing unit is mounted on the workpiece slide and is simply slid into the dressing position when needed.<\/p>

Coolant System:<\/b>The coolant tank, equipped with a settling basin, is housed as a slide-in drawer in the machine bed.The coolant flow is adjustable via a control valve.<\/p>

Electrical Equipment:<\/b>Dedicated motors are provided to drive the grinding spindle, the workpiece spindle, and the coolant pump.The control elements for the motors are centrally located in the wheelhead.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\n<\/div>\n

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Download VKM1M Brochure\n\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Related Content<\/h2>\t\t\t\t<\/div>\n\t\t
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Testing Valve Leak Tightness\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"Operating Principle: Connected to compressed air (approx. 6 bar), the tester creates a vacuum upon pressing the trigger button, which is applied to the intake or exhaust port of the valve being tested via an adapter plate. The pressure gauge on the tester indicates the vacuum level. If the gauge needle is in the green zone, the valve is leak-tight.View details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Type VR Reamer\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"The rigid Type VR valve guide reamer for reaming valve guides in motorcycle, passenger car, and commercial vehicle engines.View details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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VD2 Valve Seat Turning Tool\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"Hunger valve seat turning tool for 30\u00b0 and 45\u00b0 valve seats with diameters 30 – 90mmView details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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VDS2 Valve Seat Turning Tool\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"Hunger valve seat turning tool for valve seats with diameters 30 – 90mmView details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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PVM 1 Installation Kit for Valve Guides and Valve Seats\n<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"Application: With the PVM 1 installation kit, worn valve guides can be removed from the cylinder head and new valve guides installed quickly and effortlessly. The PVM 1 is also suitable for driving out valve seat rings. The installation kit is ideal for motorcycle, passenger car, and commercial vehicle workshops.View details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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VD4HD<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"Valve seat lathe for seat diameters 60 – 230 mmView details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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VDS2.3E\/2.5HD<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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\"\"Valve seat lathe for seat diameters 35 – 120\/140 mmView details<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\n<\/div>\n\n<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

VKM1M Home \/ Seite VKM1M Valve refacing machine for valves with stem dia. up to 20 mm Technical Specifications:   Working Range:                      Valve stem dia. 4 – 20 mm Max. valve head dia. 100 mm Valve seat angle 19\u00b0 – 47\u00b0 Grinding Spindle:   Grinding […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":2729,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"no-sidebar","site-content-layout":"","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-2851","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/pages\/2851","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/comments?post=2851"}],"version-history":[{"count":2,"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/pages\/2851\/revisions"}],"predecessor-version":[{"id":2890,"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/pages\/2851\/revisions\/2890"}],"up":[{"embeddable":true,"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/pages\/2729"}],"wp:attachment":[{"href":"https:\/\/www.ludwig-hunger.de\/en\/wp-json\/wp\/v2\/media?parent=2851"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}