MonoSpan
MonoSpan ® is the perfect narrow track system, available in a fixed 95.5mm (3.76”)
width. It is the right choice for a wide variety of products that fit the human hand, and is used extensively in packaging and
product handling applications involving small parts. MonoSpan ® chain has a 51% open design, allowing the chain to be easily
washed down while on the conveyor.
Stain resistance and durability are standard features of the entire Designer System ®
family of conveyors, due to the use of standard chain links made from white Acetal plastic.
MonoSpan ® chain has a pitch of 25mm (0.98”) and a width of 95.5mm (3.76”). Its minimum
centerline turning radius is 457.2mm (18”) for aluminum framing and 533.4mm (21”) for stainless steel framing.
Application flexibility is the key to the Designer System ® line, offering the ability
to incorporate multiple curves and elevation changes in one continuous conveyor. With its all-plastic assembly, MonoSpan ® chain is
also ideal for running through metal detectors.
MonoSpan ® chain is USDA approved and BISSC certified. Available in materials resistant
to most chemicals and constant temperatures ranging from -40°C (-40°F) to 104.4°C (220°F). As a rule of thumb, MonoSpan ®
plain chain has a weight of 0.6 lbs. per linear foot, and a load carrying capacity of 15 lbs. per linear foot.
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MultiSpan
MultiSpan ® chain is the strongest and most versatile among the Designer System ® family
of conveyors. It comes in a variety of configurations to accommodate almost any product handling application in the
industry.
MultiSpan ® chain offers exceptional accumulation capabilities due to its
edgeless design. This means lower back pressure during accumulation, reducing the likelihood of product damage.
Small parts transport well on MultiSpan ® chain because of its 25mm (0.98”) pitch and
compact profile, but its 42% open design still allows for the natural flow-through of liquids and debris.
The unique flexibility of the chain means that combining horizontal curves and elevation
changes is no problem for the Designer System ® family of conveyors.
MultiSpan ® chain has a pitch of 25mm (0.98”) and is available in widths ranging
from 125.5mm (4.94”) to 1219mm (48”) and beyond, in 30mm (1.18”) increments.
MultiSpan ® chain is USDA approved and BISSC certified. Available in materials resistant
to most chemicals and constant temperatures ranging from -40°C (-40°F) to 104.4°C (220°F).
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SuperTight
SuperTight chain is a variation of SpanTech’s proven MultiSpan ® conveyor
chain. SuperTight is lighter in weight than MultiSpan ® yet is just as strong, and offers the tightest turning radius in the
Designer System ® conveyor line.
Initially developed for use with SpanTech’s spiral conveyors, SuperTight works equally
well for standard applications, and is ideal when a smaller horizontal turning radius is needed. In many cases SuperTight chain can
also be the most economical choice, especially when dealing with chain widths greater than 275.6mm (10.85”).
SuperTight chain has a pitch of 25mm (0.98”) and is available in widths ranging from
95.5mm (3.76”) to 1175.5mm (46.28”) and beyond.
SuperTight chain is USDA Approved and BISSC Certified. Available in materials resistant
to most chemicals and constant temperatures ranging from -40°C (-40°F) to 104.4°C (220°F).
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MaxiSpan
Providing a 75% open design, MaxiSpan ® chain offers excellent product cooling capabilities. Liquids and debris are able to
fall though, generating increased production by minimizing downtime for conveyor cleaning. The open design also means less
material is used, resulting in cost savings.
A major advantage of the Designer System ® product line is the ability to combine
horizontal curves, inclines, declines, and straight sections in one continuous conveyor, often eliminating transfers.
Service and maintenance is simple because the chain can be easily opened in a matter of seconds at any point along the conveyor.
The all-plastic construction of MaxiSpan ® chain makes it perfect for running through metal
detectors.
MaxiSpan ® chain has a pitch of 50mm (1.97”) and is available in widths ranging from
209.3mm (8.24”) to 1219mm (48”) and beyond, in 100mm (3.94”) increments. As a rule of
thumb, MaxiSpan ® plain chain has a weight of 1.3 lbs. per square foot, and a load carrying capacity of 25 lbs. per square
foot.
MaxiSpan ® chain is USDA approved and BISSC certified. Available in materials resistant
to most chemicals and constant temperatures ranging from -40°C (-40°F) to 104.4°C (220°F).
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Closed Top
The open designs of SpanTech’s MonoSpan ®, MultiSpan ®, and MaxiSpan ® chain types have
many advantages in the areas of product cooling and cleanliness, and the fact that less material is used makes them lightweight
and economical. But sometimes you need a conveyor chain with a smooth, closed carrying surface, and that’s when SpanTech’s
Closed Top chain can be the ideal choice.
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Bed Sections
Horizontal curves and vertical bends are both standard capabilities for the Designer
System ® family of conveyors. Straights, curves, and elevation changes are combined into a continuous, unbroken path, allowing
your product to make turns and inclines without potentially damaging transfer points.
Available in stainless steel, painted steel, or anodized aluminum, the Designer System ®
conveyor frame sections are bolted together using stainless steel crossbars. This bolted, modular design makes conveyor
assembly quick and easy, while also providing a simple solution for future expansion.
The sides of the frame are sloped for easy drainage of fluids and debris. Optional
50.8mm (2”) diameter holes (portholes) are also available for easy cleaning and washdown.
Every conveyor chain type in the Designer System ® line is contained by the outside edge of the
conveyor frame, using a plastic wearstrip to reduce friction and prevent damage. Since the chain always remains captured to the
frame, the dimensions remain constant and tension adjustments are eliminated.
Horizontal curves can be manufactured to any degree angle and to any radius which does
not exceed the chain’s minimum. Metal detector bed sections, guide rails, chain support rails, drip trays and other
accessories are available to accommodate your specific product handling application.
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Horizontal Bends
One of the most unique features of the Designer System ® family of conveyors is the
horizontal curve. Horizontal curves can be manufactured to any degree angle, at any radius, within the engineering limits. In
conjunction with SpanTech’s vertical bends, horizontal curves provide the capability to incorporate a combination of directional
turns and elevation changes within a single, continuous conveyor.
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Vertical Bends
Elevation changes in a conveyor layout can be accomplished in various ways but the most
common method is through the use of vertical bends. The Designer System ® family of conveyors uses molded plastic vertical bends
made of high density polypropylene.
Vertical bends have a centerline radius of 400mm (15.75”) and range from 5° to 90°
angles, in 1° increments. In conjunction with SpanTech’s horizontal curves, vertical bends provide the capability to incorporate
a combination of directional turns and elevation changes within a single, continuous conveyor.
When designing conveyor layouts that include vertical bends for making elevation changes,
the following rules of thumb apply:
- Between a horizontal curve and a vertical bend (elevation change), there should be a straight section greater than or
equal to 2 times the chain width. This applies to all conveyors within The Designer System ® family.
- Drive or Idler assemblies can be attached directly to a vertical bend assembly.
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Clean-Out Holes
Clean out holes are used when sanitation is a very high priority. They allow for better access
to the inside of the conveyor bed for more effective and less time consuming wash down.
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Food Industry Option Package
SpanTech conveyors can be equipped when needed with a gearmotor featuring the food
Industry Option Package, or IOP. This is a gearmotor package having characteristics that satisfy the requirements of a given
industry. The food IOP gearmotor from SEW-Eurodrive, with its encapsulated inverter-duty stator, encapsulated conduit
box, and stainless steel components, is designed to stand up to the severe conditions and washdown requirements of the
food industry. SpanTech’s SaniSpan Conveyor comes standard with the food IOP gearmotor.
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Guide Rails-Brackets
A variety of guide rails and guide rail mounting brackets are available for your
conveyor, all featuring inserts made of ultra high molecular weight polyethylene (UHMWP). Flat offset, channel, adjustable
and more — an ideal option exists for virtually any application.
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Hollow Shaft Mount
A typical SpanTech conveyor is powered by an SEW-Eurodrive helical-worm gearmotor, with a
hollow-shaft mount. This design facilitates easy maintenance, and simplifies removal/replacement if necessary. The
gearmotor’s hollow shaft is keyed to one end of the conveyor’s drive shaft, while a torque arm bracket secures the motor to the
conveyor frame.
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SEW Gearmotors
SpanTech conveyors feature SEW-Eurodrive gearmotors as standard equipment. The
SEW-Eurodrive SA series of helical-worm hollow-shaft gearmotors provides rugged high performance and reliability, even in the
toughest operating conditions. A wide variety of sizes, voltages, and ratios are available to meet the needs of any
application.
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Slave Drive
The slave drive option allows two consecutive conveyors to be driven by a single
gearmotor. This option is available for plain or raised top chain conveyors. A SpanTech representative can assist you in
determining if a slave drive may be compatible with your application.
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Support Structures
There are a variety of support structures available for supporting the Designer System
® family of conveyors. Support structures are offered in stainless steel, painted steel, or anodized aluminum, providing a
durable finish and offering exceptional wash down capabilities. Support structures are available for USDA approved and BISSC
certified applications.
The Designer System ® support structures are modular in construction — a support can be
used on any Designer System ® conveyor of the appropriate width. Designer System ® conveyors can also run overhead through the
use of ceiling supports, saving valuable floor space for other purposes. Adjustable feet make leveling on uneven floors easy.
Floor supports can be freestanding, bolted to the floor, or be equipped with casters to make the conveyor mobile if the application
demands.
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Variable Frequency Drives
SpanTech conveyors are available with Variable Frequency Drives, providing
complete control of startup, acceleration, running speed, deceleration, and stoppage. The VFD can be built into the conduit box of
the conveyor’s gearmotor, requiring no external wiring other than the incoming power lines.
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