Spencer Johnston

Spencer Johnston
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Fixed Bow Steelclad Spreader Roll Click to Close Click to Open

Spencer Johnston Features -
  • Precision engineered spools, axles and bows
  • Axle bows to within 0.005 in.
  • Engineered surface materials
  • High temperature capabilities
  • High wear resistance
  • Unique, extended life coupling designs

Spencer Johnston Benefits -
  • Improve quality by eliminating wrinkles
  • Reduce overlap and interweaving
  • Increase productivity with minimal scrap
  • Rolls run longer, cleaner and with less maintenance

Spencer Johnston Advantage -
  • Number one choice of machine builders
  • Numerous high speed references
  • Design simplicity that means fewer moving parts & less component wear

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Fixed Bow Rubber Covered Spreader Rolls Click to Close Click to Open

Spencer Johnston Features -
  • Application experience unsurpassed
  • Precision CNC machined spools
  • Axle bows to within 0.005 in.
  • Superior O.D. spool to I.D. cover fit dimensions
  • Reinforced durable covers
  • Wider choice of covers with resistance to chemicals, temperature and abrasion
  • Precision ground cover diameters

Spencer Johnston Benefits -
  • Improve quality by eliminating wrinkles, overlap
  • Improve productivity with less maintenance
  • Engineered cover fits mean less vibration, longer life

Spencer Johnston Advantage -
  • Supply agreements with the finest sleeve suppliers
  • Covers for every application and machine section
  • Numerous running references
  • Superior tolerances on ground covers

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Adjustable Bow Steelclad Spreader Rolls Click to Close Click to Open

Spencer Johnston Features -
  • Precision engineered spools, axles and bows
  • Engineered surface materials
  • High temperature capabilities
  • High wear resistance
  • Bows adjustable electrically for direction, height and repeatability
  • Product improvements expected: measured bows

Spencer Johnston Benefits -
  • Increase your flexibility to run multiple grades and applications
  • Fine tune your bow requirement "on the run"
  • Improve productivity with reduced waste, maintenance and wear allowing you to run longer and cleaner

Spencer Johnston Advantage -
  • Provides an extra variable at critical positions
  • Allows mill to become more productive and profitable
  • Provides optimum spreading control for all webs

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Adjustable Bow Rubber Covered Spreader Rolls Click to Close Click to Open

Spencer Johnston Features -
  • Application specific designs
  • Wider material choices for better resistance to chemicals, temperature & abrasion
  • Superior interior dimensional fit
  • Superior, precision ground roll diameter
  • Precision spools and axle bow
  • Reinforced, durable covers
  • Hydraulically adjustable bow with digital readout for repeatability
  • Upcoming product improvement: measured bow

Spencer Johnston Benefits -
  • Improve productivity by allowing you to increase the deckle sheet width, run multiple grades and applications, run longer, smoother and reduce wear
  • Improve quality by eliminating wrinkles and reducing overlap and interweaving

Spencer Johnston Advantage -
  • Superior agreements with finest sleeve suppliers
  • Superior sleeve to spool fit
  • Superior cover tolerances

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Fixed Bow Sine Wave Spreader Roll Click to Close Click to Open

Spencer Johnston Features -
  • Precision spool designs
  • Multiple surface coating availability
  • Spencer Johnston Roll Monitoring System capabilities
  • Higher wear resistance
  • Proven spreader roll technology

Spencer Johnston Benefits -
  • Improve quality with NO marking and continuous web support
  • Improve productivity with fewer roll changes

Spencer Johnston Advantage -
  • Unique solution – patent pending
  • Largest installed base in industry
  • Easily replaces existing sectionalized rolls

Low Inertia Rolls Click to Close Click to Open

Spencer Johnston Features -
  • Web driven rolls, available in small diameters
  • Independent segments built on spreader roll technology
  • Available with Spencer Johnston Roll Monitoring technology
  • Load cells
  • Precision engineered spools
  • Small real estate requirements
  • Minimal space required
Spencer Johnston Benefits -
  • Improve quality with less marking
  • Improve and simplify operations
  • Continuous, aligned sheet support and tension control
  • Reduced roll maintenance
  • Reduced space requirements with no beam

Spencer Johnston Advantage -
  • Largest running technology application base
  • Easily replaces existing sectionalized roll

Spencer Johnston Roll Monitoring System Click to Close Click to Open

Spencer Johnston Features -
  • Internal mounting
  • Spencer Johnston Roll Monitoring System (critical speed avoidance) indicators
  • Indicators for temperature, RPM and vibration
  • Detection – bearing failure and web tension
  • Monitoring – remote or on-line
  • Unique grease retention system
  • Pre-wired and tested connections for quick installation
  • Outputs adaptable to wide range of host systems

Spencer Johnston Benefits -
  • Improves operations with CONDITION BASED maintenance for:
    • Longer run life with key baseline learning
    • More uptime.  Eliminates running at critical speeds
    • Increases bearing life with fault detection
    • Improves system flexibility by integrating with existing systems
    • Improves quality with more accurate web control

Spencer Johnston Advantage -
  • Longest running technology applications in industry
  • Strongest alliance with major bearing supplier
  • Supports class leading condition monitoring options

Uniform Slit Separation System Click to Close Click to Open

Spencer Johnston Features -
  • Keeps sheet travel equal on edges and center
  • Remotely adjustable, driven or non-driven
  • Choice of surface materials
  • Modular design, pre-assembled and optically aligned
  • Superior rigidity, precision bowing
  • Digitally monitored
  • Complete system: 2 conventional fixed bow rolls on pivoting table

Spencer Johnston Benefits -
  • Improves quality by eliminating interweaving
  • Improves sheet stability
  • Improves operations as it is simpler, more flexible, faster to start up, and reduces waste
  • Minimizes edge strain when spreading a large number of slits and allows webs to approach the rear drum straighter for improved stability
Spencer Johnston Advantage -
  • Superior – most powerful spreading system in the world
  • Largest installed base – more than all global competitors combined
  • Applicable to all paper grades

Direct Drive Spreader Rolls Click to Close Click to Open

Spencer Johnston Features -
  • Improve quality with improved spreading and better speed control
  • Improve operations with lower maintenance
  • Reduced roll wear
  • Smoother and quieter
  • Minimal space required

Spencer Johnston Benefits -
  • Improve quality by eliminating wrinkles
  • Reduce overlap and interweaving
  • Increase productivity with minimal scrap
  • Rolls run longer, cleaner and with less maintenance
Spencer Johnston Advantage -
  • Number one choice of machine builders
  • Numerous high speed references
  • Design simplicity that means fewer moving parts & less component wear

Nip-out (Contraspread) Rolls Click to Close Click to Open

Spencer Johnston Features -
  • Precision balanced shells for operating speed
  • Shell bearing forces corrected to within +/-.0005"
  • Axle bearing fits corrected to within +/-.0005"
  • Two-part epoxy shell coating
  • Higher temperature capabilities
  • Unique extended life coupling designs

Spencer Johnston Benefits -
  • Internal greasing systems
  • Double row ball bearings
  • Chrome or Aluminized shell treatments

Spencer Johnston Advantage -
  • Improve quality by eliminating wrinkles
  • Rolls run longer, cleaner and with less maintenance
  • Numerous Coated and Steelclad customer references
  • Adapt our coupling design to any roll manufacture

SJ2-105 Nitrile Base Rubber Click to Close Click to Open

Cover Compound: SJ2-105 Nitrile Base Rubber
  • Applications: Paper Machine – Forming and Press Sections
  • Hardness: Shore A durometer 85 to 90
  • Temperature: 275° F (135° C)
  • Color: Black

Chemical Resistance -
  • Excellent - Petroleum Oil, Hydraulic Oil, Aliphatic Hydrocarbons, Water
  • Good – Steam, Kerosene, Alcohol, Aromatic Hydrocarbons
  • Fair – Strong Acids, Alkalis, Ozone

Product Features -
  • SJ2-105 compound has great physical and chemical properties formulated to operate in a hot aqueous application.  This compound also has the physical properties required for excellent abrasion resistance and still provides stability in a chemical environment.

SJ2-106 HNBR Click to Close Click to Open

Cover Compound: SJ2-106 – HNBR
  • Applications: Paper Machine – Forming and Press Sections
  • Hardness: Shore A durometer 75 to 80
  • Temperature: 350° F (175° C)
  • Color: Red

Chemical Resistance -
  • Excellent - Petroleum Oil, Hydraulic Oil, Aliphatic Hydrocarbons, Water
  • Good – Steam, Kerosene, Alcohol, Aromatic Hydrocarbons
  • Fair – Strong Acids, Alkalis, Ozone

Product Features -
  • SJ2-106 compound is formulated to operate in a hot aqueous application, excellent abrasion resistance and chemical resistance superior to that of traditional nitrile.

SJ2-145 Nitrile Rubber (PRESS) Click to Close Click to Open

Cover Compound: SJ2-145 Nitrile Rubber (PRESS)
  • Applications: Paper Machine – Forming and Press Sections
  • Hardness: Shore A durometer 85 to 90
  • Temperature: 275° F (135° C)
  • Color: Red

Chemical Resistance -
  • Excellent - Petroleum Oil, Hydraulic Oil, Aliphatic Hydrocarbons, Water
  • Good – Steam, Kerosene, Alcohol, Aromatic Hydrocarbons
  • Fair – Strong Acids, Alkalis, Ozone
Product Features -
  • SJ2-145 compound has superior abrasion, chemical and tear resistance, maintains durometer hardness for extended service life.

SJ4-105 Hypalon Rubber Click to Close Click to Open

Cover Compound: SJ4-105 CSM Rubber
  • Applications: Dryer Section
  • Hardness: Shore A durometer 75 to 80 (If required, up to 90 Shore A durometer)
  • Temperature: 300° F (150° C)
  • Color: Orange

Chemical Resistance -
  • Excellent – Ozone, Petroleum Oil, Hydraulic Fluids
  • Good – Acids, Caustics, Alcohol
  • Fair – Aromatic Hydrocarbons, Chlorinated Hydrocarbons

Product Features -
  • SJ4-105 compound has excellent abrasion resistance, maintains hardness and has good compression set. Very good heat aging and tear resistance. Resists grooved closing and land cracking. Has good release properties.

SJ2-115 Carboxylated Nitrile Click to Close Click to Open

Cover Compound: SJ2-115 Carboxylated Nitrile
  • Applications: Coater, Off Machine Coater, Calender, Reel and Finishing – Winders and Slitter Rewinders
  • Hardness: Shore A durometer 75 to 80 (If required, up to 95 Shore A durometer)
  • Temperature: 275° F (135° C)
  • Color: Orange

Chemical Resistance -
  • Excellent – Aliphatic Hydrocarbons, Water, Petroleum Oil, Hydraulic Fluids
  • Good – Steam, Aromatic Hydrocarbons, Kerosene, Alcohol
  • Fair – Strong Acids, Alkalis, Ozone

Product Features -
  • SJ2-115 compound carboxylated nitrile is similar to nitrile rubber. However, the polymer backbone has been chemically modified with a carboxylic acid containing group. The result is a nitrile rubber with outstanding abrasion resistance and chemical resistance superior to that of traditional nitrile. Compound will maintain a glazed surface with good release properties.

SJ9-115 Silicone Rubber Click to Close Click to Open

Cover Compound: SJ9-115 Silicone Rubber
  • Applications: Paper Machine – High Temperature Area
  • Hardness: Shore A durometer 50 to 75
  • Temperature: 360° F (180° C)
  • Color: Red

Chemical Resistance -
  • Excellent – Alkalis, Esters and Keytones
  • Good – Chlorinated and Aromatic Hydrocarbons and Solvents
  • Fair – Hydraulic Fluids and Petroleum Oil

Product Features -
  • SJ9-115 compound has excellent release. Good chemical resistance and fair abrasion resistance. Resists hardening at higher temperatures.

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