Column: Industry Watch
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Finger Jointing Equipment
Tech Update Editor: Helen Johnson
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on these products.
Western Machinery Group/Western
high production, state-of-the-art finger jointer from Western Machinery
Group, the HD High, is a durable, efficient and accurate horizontal finger
jointing system, offering more production capacity, the company says.
Western Machinery has a full range of finger jointing systems for medium
and high production, as well as a low production finger jointer, the
Western Reclaimer. All systems feature a dust collection system.
Experienced field service technicians install and troubleshoot all
systems. Trade-ins are accepted and financing is available.
Circle Reader Service Card # 740
Conception RP Inc introduces its new CRP2000SE and CRP2250 finger
jointers designed for short blocks from five inches up to 42 inches for
studs and I-beam flanges applications. The CRP2000SE has a production
capacity of more than 250 linear feet per minute, with a capacity to run
up to 160 lugs per minute with a perfect glue application, the company
says. An important improvement is that the hydraulic component has been
completely eliminated. The high-capacity stop-and-go press is now entirely
pneumatic and presses the planks on both ends. This 32-foot press can
produce up to 10 cycles per minute.
With a production capacity of more than 325 linear feet per minute, the
CRP2250 has a continuous in-line pressing system (crowder type) and a
flying saw with an accuracy of -0" + 1/4" on a 60-foot plank.
The flying saw is driven by a servomotor and is one of the most accurate
on the market today, the company says.
Circle Reader Service Card # 741
Grecon Dimter offers a wide variety of finger jointing equipment, from
small reclaim finger jointers to high capacity models cutting either
vertical or horizontal joints. Most models are modular to allow for the
addition of more automation to increase production capacity, while
retaining the same major items such as shapers and press.
The increased automation brought about by modular upgrades helps to reduce
labour costs, the company says. In use in virtually every finger jointing
application, Grecon Dimter finger jointers are heavy duty and precise and
produce high quality joints based on the Weinig-made cutter head spindles.
The company, which manufacturers more models of finger jointers than any
other company worldwide, has offered training, installation, service,
documentation and spare parts programs for many years in support of its
Circle Reader Service Card # 742
Wisconsin Knife Works
A pioneer in the finger jointing industry since 1929, Wisconsin Knife
Works initially developed and patented the Lock-Joint Grooving Head-known
today as the finger joint head-that was originally used to finger joint
wood pieces to make automobile bodies and steering wheels. Since then, the
circle-bit style finger joint cutter has evolved with greatly improved
tolerances and machining precision. WKW finger joint heads and cutters can
be used on a variety of machinery, from a heavy-duty spindle shaper to a
double end tenoner. The most common application is on a finger joint
system that comes complete with stock handling and feeding systems, as well
as all assembly and gluing apparatus.
Traditionally, the cutters for softwoods are made from high-speed tool
steel and high molybdenum M-2, whereas hardwoods may be jointed using WKW
Opti cutters or cutters made from high-speed steel (HSS) or carbide.
In addition to the abrasion and corrosion problems that abrasive woods
cause, the increasing use of man-made wood products has necessitated
specially designed cutters. Composite materials consisting of wood fibre
and glue usually require WKW carbide finger joint cutters.
Circle Reader Service Card # 743
BGR Tools Inc
BGR Tools, a manufacturer offering a variety of custom tooling to the wood
industry since 1974, makes either straight bore or hydraulic finger joint
heads, from six to 20 bolts. Durable and precise, knives from BGR Tools
can be made to exact specifications for whatever production pattern is
required. The company, with distributors on four continents, manufactures
knives and heads for the wood, panelboard, plastic, rubber and metal
industries. BGR also manufactures custom parts for finger jointing heads
and set up stands.
Circle Reader Service Card # 744
Since 1971, Apquip has specialized in adhesive application equipment for
the forest products industry, designing and manufacturing application
systems for both vertical and horizontal finger jointing machines.
Apquip's pressurized, non-circulating, application system incorporates a
profiled extruder head with an air-operated adhesive valve, adjustable
timed on/off delay controls and constant adhesive pressure from a pressure
tank, pump or meter mixer. By detecting the leading and trailing edge of
each board or block with a sensor, start and stop points of adhesive
coverage can be accurately controlled.
Apquip manufactures a variety of x,y adjustment slides that include a
break away feature to allow defective boards to pass without damage to the
system. Made from stainless steel for durability and corrosion resistance,
all applicator heads and wetted parts are built to customer
Circle Reader Service Card # 745
The new DJ-400 from Doucet Machineries Inc is a complete finger jointing
line designed to produce studs or joist rails at speeds of up to 400 feet
per minute. It includes an automatic infeed module, a dual broad base
profiling machine with machining centres on both sides
of an eight-foot-wide transport table, an automatic corner, a continuous
assembly press and a flying cut-off saw. Designed to joint 2x3, 2x4 and
2x6 material 10 to 144 feet long, the high capacity profiling system
features dual cast iron chains, traverse bars with chip breakers spaced 9
inches on centres, machining centres equipped with trimming/scoring units,
25hp cutter head motors and spindles and an automatic glue applicator.
Material is held in place by a pneumatic hold down system with interlocked
Three 36-inch roller conveyors are used for end justification before
machining side-to-side transfer and outfeed of material.After profiling,
pieces are automatically transferred onto the accumulator/sequencer
device. The automatic press has a pre-assembly tunnel, a crowder/retard
device, a four-spindle planer, a flying cut-off saw and a material exit
facility with precision trim saws. It uses the crowder and retard
principle to apply pressure to the pieces to be jointed. The press
includes a control panel with a programmable microprocessor and has sensor
devices to ramp assembly speed up or down depending on volume exiting the
finger jointing machine. Configurations have been developed to match final
characteristics and production volume requirements.
Circle Reader Service Card # 746
Cutting Edge Machines
The focus of Cutting Edge Machines is on the processing of blocks before
finger jointing and improvements on finger joint components. The finger
jointer lug loader and high-speed automatic corner are two improvements
that have greatly improved production, increasing throughput from 105 lugs
per minute to as much as 160 lpm, the company says, depending on the
length of blocks being processed. Cutting Edge Machines is currently
testing a finger jointer quality control system that monitors the width of
blocks, the trim
squareness and moisture content and, as well, checks the chain's lug
squareness on the fly.
The Cutting Edge finger joint proof loader offers fast setup and
calibration. Held in place by locking pins, the stands that support the
boards slide easily between the various positions. The cylinder is
returned to its home position by releasing the hydraulic pressure and
requires no compressed air. The dimensions allow testing of 2x4 through
2x6 boards on the flat and on edge without ripping. The pressure gauge and
piston snubber are designed to withstand the inverted spikes that result
when the board breaks and the quick-disconnect gauge has a maximum-reading
needle so breaking pressure can't be misread, the company says. Optional
is a PC interface that automatically records breaking force and compares
it to the MOR tables.
Cutting Edge also manufactures a short block ripsaw for re-rip operations
that utilizes a spike-chain bed and single climb cutting circular saw
along with a unique overlapping fence system. The saw uses standard saw
Circle Reader Service Card # 747
Coe/Mann-Russell Electronics designs and builds complete finger joint
gluing lines utilizing the many benefits of radio frequency curing. The
designs and processes are based on more than 40 years of experience in
structural finger jointing and non-structural finger jointing for exterior
In addition to the RF heating section, Coe/Mann-Russell also manufactures
the assembly and crowder sections, flying cut-off saw, final trim and
stacking equipment, bending proof loader and specially designed finger
joint cutting equipment.
Circle Reader Service Card # 748
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