The brake on all capital fullround lathes is operated by one or two air cylinders from the operator’s position. The one and off movement of the feed is also done by air cylinder.
This main drive powers the use of eight heavy duty “V” belts, the optional computer feed can also be arranged to automatically give a constant flow of veneer from the veneer lathe at whatever speed the veneer through the entire cutting of the log. On drives of 100 HP, blowers are recommended.
Non-metallic pistons are used. These drive into the extremely large main gears giving a ten to one ratio. The large gears give tremendous power and are accurately machine cut. They are made to give continuous service, and have lasted up to 80 years on many of our machines. By mounting the gears on the end of the spindle sleeves, we are able to get extremely large sleeves. This also allows us to use extremely long and large main bearings as previously mentioned.
Hydraulic Back Rolls are offered to increase yield and reduce the thick and thin and variations with the sheet of veneer.
The knife carriage is moved in and out by a 5 HP motor controlled from the operator position. This knife carriage is driven through roller chain and sprocket.
When full diameter logs 36” up to 60 inches in diameter are to be cut or the thickness of the veneer is heavy, or in some cases if log lengths are over 107”, we recommend the use of 5-7/8” diameter spindles.
If short length logs are to be cut by the use of these steady rests the log can be shifted from one end to the other end of the lathe, if a nick gets into the knife and the operator does not wish to change his knife at that time.
Taking everything into consideration, this is the most sturdy and practical lathe that is built. This new style lathe is built with the experience of 115 years of building veneer lathes by the CAPITAL MACHINE COMPANY. The sturdy, practical design of the lathe in which rigidity is the most important factor, gives an accuracy that cannot be equaled for full round rotary cutting of hardwood veneer.
The patented (and optional) Stain-Free, Distortion-Free System – supplied in the knife bar and pressure cap- resists tannic acid causes the “blue-stain” and minimizes frequent pressure bar adjustments due to the heat caused by friction and heat transfer of the log.
Available in 60″ Diameter Swing by 77″, 107″, 127″, or 132″ Knife Length.
This super heavy duty fullround face and plywood lathe is built for precision and production. Please contact us for more details.
This super heavy duty full round face & plywood lathe is built for precision and production. The heavy
cast iron 16″ deep bed plates give a more than a rigid base for the long spindle bearing housings where the
spindle sleeves revolve. These sleeves revolve on replaceable graphite phenolic liners. These bearings will last for years without replacing, when properly lubricated. This is also true of the Bronze or optional Roller Thrust Bearings.
The pressure cap is mounted on exceptionally large Timken bearings, and hinges back so that a 3″ gap is made between the knife and pressure bar for the elimination of slivers and whetting of the knife or for round up. The pressure bar is mounted on the pressure cap through the Timken bearings in steel cages and this constructed in such a way that no play can develop between the pressure bar and knife. A Micrometer dial sets the distance between the bar and
knife, in graduations of a thousandth of an inch, and both ends of the knife bar move forward and backward by turning the hand wheel located on the pressure cap on new D.C. Servo motors or temposonic systems. Each end of the pressure cap can be also individually set independent of the other end. The pressure cap is hinged back by the use of an air cylinder. The knife bar has knife clamps making possible the use of solid back knives. We offer optional hydraulic knife clamps for faster knife changes.
We equip our pressure caps with steel trusses, horizontally and vertically. The purpose of these trusses is to cancel out any bow up or down, or in and out that is caused by heat being generated at the pressure bar. This generated heat will bow the pressure bar. If the pressure bar bows down or in
toward the knife and is not adjusted out by the brace bars, this can destroy the accuracy of the veneer and can result in buckled or thick and thin wood.
On a Capital Lathe the pressure bar can be adjusted vertically and in and out every two and one-half inches, through its entire length. The knife bar assembly is mounted on the heavy duty slide blocks
which each have two six-inch bronze nuts, and which makes it possible to cancel out any play that develops in the feed screws. We also offer optional hardened ball feed screws for computer accuracy when the computer feed system is used. The automatic pitch is arranged upon a pitch track, where the knife carriage rests on the rear set screws. We can also offer temposonic lead control of the knife angle. This allows the cut to be correct down to the core. Once the adjustment is reached the set screws can be locked and the automatic pitch will control the pitch of the knife carriage automatically.
The in and out movement of the main dogging spindle is through a 20 HP motor, driving chain sprockets, and is controlled through a forward and reverse contactor electrically from the operator station. The
tail spindle can be moved in and out if desired by a small sprocket and chain and 10 HP motor. A bronze dogging nut is used on the heavy dogging spindle, a Mehanite nut on the tail spindle.
We also offer optional motor driven steady rests which support the spindles when short length logs are to be cut. These steady rests can be moved back and forth by power through individual electric motors on each steady rest located under the main sleeve housings on each end. We offer three sizes of spindles diameters, 4-7/8″ diameter spindles are
standard, (3-5/16″ or 5-7/8″ diameter spindles are also available on some length machines). The brake on this lathe is operated by one or two air cylinders from the operator’s position. The on and off movement of the feed is also done by air cylinder. This main drive powers by the use of eight heavy duty “V” belts, the optional computer feed can also be arranged to automatically give a constant flow of veneer from the veneer lathe at whatever speed the veneer through the entire cutting of the log. On drives of 100 HP – 300 HP, blowers are recommended.
Non-metallic pinions are used. These drive into the extremely large main gears giving a ten to one ratio. The large gears give tremendous power and are accurately machine cut. They are made to give continuous service, and have lasted up to 80 years on many of our machines. By mounting the gears on the end of the spindle sleeves, we are able to get extremely large sleeves, giving the spindles a 50″ long support through the bore of these sleeves. This also allows us to use extremely long and large main bearings as previously mentioned. Hydraulic Back Rolls are offered to increase yield and reduce the thick and thin and variations with the sheet of veneer.
The knife carriage is moved in and out by a 5 HP motor controlled from the operator position. This knife carriage is driven through roller chain and sprocket.
When full diameter logs 36″ up to 60 inches in diameter are to be cut or the thickness of the veneer is heavy, or in some cases if log lengths are over 107″, we recommend the use of 5-7/8″ diameter spindles. If short length logs are to be cut by the use of these steady rests the log can be shifted from one end to the other end of the lathe, if a nick gets into the knife and the operator does not wish to change his knife at that time.
Taking everything into consideration, this is the most sturdy and practical fullround lathe that is built. This new style lathe is built with the experience of 115 years of building veneer lathes by the CAPITAL MACHINE COMPANY. The sturdy, practical design of the lathe in which rigidity is the most important factor, gives an accuracy that cannot be equaled for full round rotary cutting of hardwood veneer.
The patented (and optional) Stain-Free, Distortion Free System – supplied in the knife bar and pressure cap – resists tannic acid causing “blue-stain” and minimizes frequent pressure bar adjustments due to the heat caused by friction and heat transfer of the log.
Accuracy can be expected to be within .001” (.0254mm) within the veneer sheets and sheet to sheet. Thickness of a veneer range from .007” or 1/150” (.178mm) to 1/6” (4.2mm) can be achieved.