STEFANI - SOLUTION HD, ...w/Premill & Corner Rounding -- Specifications:0.4 - 12 mm (0.47") Edgebanding cap.; 90 mm (3-1/2") min. panel width, 220 mm (8.66") min. length; 10 - 60 mm (2.36") panel thickness; variable feed speed 10 - 30 MPM (33 - 98 FPM). -- Front End equipped with: Premilling, 4.4 kW (6 HP) - 12,000 RPM motors with Servo driven infeed fence. -- Gluing System: Large 22 kG capacity overhead "fast heat-up" granular glue system; Teflon coated lower applicator glue pot; 1" dia. glue applicator roller w/reversible rotation through PC. -- Pressure Section: Servo controlled; (1) large dia. clutch-controlled drive roller, and (5) pneumatic pressure idle rollers.WORKSTATIONS: Edgebanding: -- End Trimming, front & rear beam mounted end trims; 0.35 kW - 12,000 RPM ea.; motors tilt 0° - 22° on horiz. plane. -- Pretrimming (flush): Top & Bottom super imposed 0.75 kW - 12,000 RPM motors. -- Fine Finishing: Top & Bottom flush/bevel/radius trim station, 1 kW - 12,000 RPM ea.; motors bevel from 0° - 30°; Servo motor positioning for easy setup. -- Corner Rounding with: (4) Motors; 0.35 kW - 12,000 RPM each; 2-postition preset trimming through controller. -- Profile Scraping Unit: Top & Bottom for thick PVC, quick change insert knifes for different edge thickness scraping; PVC shavings collection box; air pressure nozzles to support removal. -- Flat Glue Scrapers: Top & Bottom pneumatic controlled scraping knives with bearing guide-wheels. -- Buffing Unit: Top & Bottom oscillating; 0.4 HP - 3,000 RPM motor ea.; units tilt 0° - 10°. -- Reactivation Unit: Top & Bottom hot air blowers to reactivate potential discoloration on certain PVC edges.Control & Operation: -- Windows XP based "WinEdge" Operator interface; unlimited program capacity; input/output on-screen viewing; hour meter; linear foot meter; unlimited program storage; ON/OFF control of all working unit; productivity reports. -- Servo controlled raise & fall of pressure beam; 80 mm V-grooved top belt; 3/4" track chain with "non-slip" chain pads. -- Features & Supplied with: Insulated sound enclosure w/large window area; rotating operator control panel at eye-level height; telescopic panel support; frequency inverter & used tooling. -- Actual Model is STEFANI SOLUTION HDNOTE: Pictured Return Conveyor is "NOT INCLUDED"

STEFANI - MD, ...Production Edgebander with EVA & PUR Gluing System, Premilling & Corner RoundingBasic Specifications: -- 0.3 - 15 mm Edgebanding cap., panel thickness (min./max.) 10 - 60 mm; panel width min. 90 mm (3-1/2"); panel length min. 140 mm (5-1/2"); variable feed speed 10 - 25 MPM (33 - 82 FPM).Frontend equipped with: -- Air Cushion infeed table: To facilitate insertion of workpieces; 600 mm x 1,600 mm. -- Premilling: (2) Motors, 4 kW (5.3 HP) - 12,000 RPM ea. -- Horizontal Coil Magazine; spraying unit (Anti-sticking liquid).Gluing System: -- Hot Melt Glue + Quick Melt System; additional PUR Glue Pot.Pressure Section: -- (1) Large dia. clutch controlled drive roller and (4) pneumatic pressure idle rollers.WORKSTATIONS: -- End Trimming: Front & Rear (0.55 kW - 12,000 RPM ea.); motors tilt 0° - 22° on horiz. plane. -- Rough Trimming Unit: Top & Bottom flush trimming (0.55 kW - 12,000 RPM ea.) with pneumatic setting for flush or slight overhang. -- Fine Trimming Unit: Top & Bottom radius or chamfer trimming, Servo driven positioning to process up to (3) radii and chamfer trimming; tiltable from 0° - 25°. -- Corner Rounding Unit: (2) Motors (0.35 kW - 12,000 RPM each); for complete panel machining with double corner rounding and top & bottom edge trimming function; automatic positioning to change between radius and chamfer trimming. -- Multi-Profile Scraping Unit: Top & Bottom for thick PVC; automatic positioning for different edge thickness and radius scraping; PVC shavings collection box; air pressure nozzle to support removal. -- Flat Glue Scrapers: Top & Bottom pneumatic controlled scraping knives with bearing guide wheels. -- Buffing Unit: Top & Bottom oscillating (0.3 kW - 3,000 RPM ea. motor); units tilt 0° - 15° with hot air blower to restore edge color; an adjustable heater up to 3,500 Watts.CONTROL & OPERATION: -- Maestro Pro Edge: 21-1/2” Touchscreen graphic interface; dynamic virtual process preview; real time status and user-friendly interface; automatic batch size, one processing with function and tools for a separate working unit management. It is not necessary to empty the machine when changing programs. -- Just In Time piece & edge programming in (10) Sec combined with Pro-Edge functions: Extremely fast and highly qualified processing mode (including edge tolerance compensation). . -- Servo controlled raise & fall of pressure beam, 80 mm V-grooved top belt; 3/4" track chain with "non-slip" chain pads.Features Include: -- Insulated sound enclosure w/large window area; rotating operator control panel at eye-level height; telescopic panel support, frequency inverter.

STEFANI SOLUTION 8600 (W/PRE-MILL & CORNER ROUNDING) + CNC HORIZONTAL & VERTICAL POSITIONING. Basic Specifications: 0.4 - 25 mm 0,98") Edgebanding cap., 90 mm (3.5")min. panel width, 220 mm (8.66") min. length; 10 - 60 mm (2.36") panel thickness; variable feed speed 10 - 30 MPM (33 - 98 FPM). -- Front-End equipped with: Pre-Milling, 4.4 kW (6 HP) - 12,000 RPM motors with Servo driven infeed fence, 2-Roll Vertical Coil Magazine. -- Gluing System: Large 22 kG capacity overhead "fast heat-up" granular glue system, Teflon coated lower applicator glue pot, 1" dia. glue applicator roller w/reversible rotation through PC. -- Pressure Section: Servo controlled, (1) large dia. clutch controlled drive roller and (5) pneumatic pressure idle rollers.WORKSTATIONS Edgebanding: -- End Trimming, front & rear beam mounted end trims (0.35 kW - 12,000 RPM ea.), motors tilt 0° - 22° on horiz. plane. -- Pre-Trimming (flush), top & bottom super imposed (0.75 kW - 12,000 RPM) motors. -- Fine Finishing: Top & Bottom flush/bevel/radius trim station (1 kW - 12,000 RPM ea.), motors bevel from 0° - 30°, Servo motor positioning for easy setup. -- Corner Rounding with: (4) Motors (0.35 kW - 12,000 RPM each); 2-postition preset trimming through controller. -- Profile Scraping Unit: Top & Bottom for thick PVC, quick change insert knifes for different edge thickness scraping; PVC shavings collection box; air pressure nozzles to support removal. -- Flat Glue Scrapers: Top & Bottom pneumatic controlled scraping knives with bearing guide-wheels. -- Buffing Unit: Top & Bottom oscillating (0.4 HP - 3,000 RPM motor ea.), units tilt 0° - 10°. -- Reactivation Unit: Top & Bottom hot air blowers to reactivate potential discoloration on certain PVC edges.Control & Operation: -- Windows XP based "WinEdge" operator interface, unlimited program capacity, input/output on-screen viewing, hour meter, linear foot meter, unlimited program storage, ON/OFF control of all working units, productivity reports. -- Servo controlled raise & fall of pressure beam, 80 mm V-grooved top belt; 3/4" track chain with "non-slip" chain pads. -- Features & Supplied with: Insulated sound enclosure w/large window area, rotating operator control panel at eye-level height, telescopic panel support, frequency inverter & used tooling. -- Actual Model is STEFANI SOLUTION 8600

STEGHERR - BOF, ...Through Feed Arch MoulderAutomatically feeds arched or curved parts for profiling or sanding. Feeds & contours parts with a radius of 6" or more and a max. material height of 3-1/4". Specifications: -- Feeds & contours parts with a radius of 6" or more and a max. material height of 3-1/4". -- (1) 1-1/4" Horizontal spindle at 5.5 HP - 7,500 or 1,500 RPM for sanding. -- 5" - 6-1/4" Tool dia., 4" spindle length capacity. -- 0.33 HP Feed motor, forward & reverse variable feed speed from 3 - 26 FPM. -- Flexible mounted 5-roller system guides and feeds workpiece. -- Simple setup allows for rapid changeover of different widths, no changeover required when machining same profile onto variety of arch radii. -- Complete with: Overhead hood assembly and dust outlet.Machine is currently wired for 220 Volt / 3 Phase power.

STEGHERR KPP Vertical Edge Gluing Bander; 2,600 mm (102") Working length, 53 mm (2.08") max. workpiece thickness, solid edge material up to 25 mm (1") thick, edge pressure 6 kg/cm (13 Lbs) pressure for the length of 2,500 mm and thickness of 20 mm at 3.5 bar.Specifications: -- Panel and wood strip are positioned into press chamber, maximum edge strip 2" X 1-1/2". -- Foot switch activates the air tube pressing system, and continuous bottom and side pressure evenly distributed over the entire workpiece allows tight glue joints (panel clamping pressure 80 PSI, edge strip clamping pressure 55 PSI). -- Panel heating unit - 850 watts (220 V, 1 Ph) temperature control from 40° - 150° C (104° - 300° F). A moveable clamp gauge positions the edge strip for drop edges or overhangs.Features: -- Special stop gauge allows for the positioning of mitered corners. Average PVAC glue cure time 40 - 70 Seconds.

STEINEMANN Type OSUS NOVA-RSA-190K Sanding Line;Complete with the following major components and features: -- (4) Sets of top & bottom opposed heads (8 heads total). -- Final head is equipped with Platen Sanding (smoothing bars). -- ISS thickness sensor system. -- 1900mm (74 inches) Max. Working Width (sander only, grade line width is a nominal 5 feet). -- CONVEY-KEYSTONE Vacuum Panel Feeder. -- CONVEY-KEYSTONE Canted Roll Infeed Section. -- CONVEY-KEYSTONE Canted Roll Outfeed Section. -- CONVEY-KEYSTONE panel grading system with (3) sort bins; automatic bin selection & discharge. -- STEINEMANN sander controls and control cabinets associated with the sander system. -- (3) Sections of ALLEN-BRADLEY Series 2100 Motor Control Centers (MCCs). (One small section to remain behind for further plant use.)NOTES: &#9679 This is a sanding line designed for manufacturing MDF or Particle Board. Thus, it is built for large capacity. &#9679 Still in place. &#9679 Last in service about 1½ years ago (2021).

STEINEMANN OSUS NOVA 160/6 K-FS/NS-OPTIMAT Top and Bottom Calibrating Sander(6) heads consisting in 2 machines, first machine top/bottom opposed head. Secoind machine (4) head with Combi and finishing platenFeatured: -- 2-Head K, (1) top & (1) bottom; both heads directly opposed. for calibrating -- (4) head FS/NS top/bottom first Combi head, second finishing platenSpecifications:First machine Calibrating Sander: -- Top/bottom opposed single head -- Working width 1,600 mm (63") both heads 11" dia. steel contact roll -- Thickness capacity 3 - 150 mm ( 1/8" - 5.9") -- Working height (passline) 1400 mm (55") -- Cutting speed on K head 34 M/sec. (6,667 SFM) -- Tolerance within the board +/- 0,075 mm (+/- 0,003") -- 100 HP motor each head. -- 63" x 103" Abrasive belt size. (to be confirmed) -- Air jet abrasive belt tracking. -- Variable feed speed 7 - 43 M/min. (24' -138"/min.), 20 HP feed motor,. -- Control panel for this machine only Second Machine Finishing Sander: -- Top/bottom (2) head each as Combination drum/platen and finishing platen -- Working width 1,600 mm (63") both heads 11" dia. steel contact roll -- Thickness capacity 3 - 150 mm ( 1/8" - 5.9") -- Working height (passline) 1400 mm (55") -- Cutting speed on FS head 22 M/sec. (4,330 SFM) -- Cutting speed on NS head 22M/sec. (4,330 SFM) -- Tolerance within the board +/- 0,075 mm (+/- 0,003") -- No motor installed -- 63" x 103" Abrasive belt size. (to be confirmed) -- Air jet abrasive belt tracking. -- Variable feed speed 7 - 43 M/min. (24' -138"/min.), 20 HP feed motor,. -- Control panel for this machine Not included: -- infeed and outfeed conveyor -- Conveyor between the machine -- “all the control wiring goes into a cabinet that is separate on each machine. That is just the wiring for the sensors and solenoids for braking and belt tracking stuff. There are no motor controls with these so there are no starters included. The 2 head comes with (2) 150 HP motors and the 4 head has no motors on it. In order to make these operational you would need a PLC and HMI to run the controls and motor starters and would need to buy motor controls

STETSON ROSS - MR-14, ...Dip Chain Gang Rip Saw75 HP Motor, belt drive to arbor; 14" wide capacity.Specifications: -- 3-9/16" Max. depth of cut; 12" dia. blade capacity; 42" throat clearance from extreme outboard saw. -- 5 HP Variable feed speed from 50 to 200 FPM; automatic feed chain lubrication system; (6) overhead pressure rollers, adjustable via 0.75 HP motor; manually operated hydraulic arbor lift; 20" min. length of stock. Complete with: -- (2) Saw sleeves, (1) sleeve with a complete set of spacers; setup stand, oil bath lubrication of bearings, and oil mist feed chain lubrication; anti-kickback fingers; infeed fence, load meters, and magnetic starters. -- Sawblades include: (7) Sets of saws; (1) set of (12) blades; (1) set of (8) blades; (1) set of (7) blades; (1) set of (6) blades; (2) sets of (2) blades; and (1) 3/4" wide hogging blade matched to the diameter of the saw blades. - All blades are 36-tooth. -- Also included: MEREEN-JOHNSON Laser Light Mounting Stand that was used with this "MR-14"; no laser lights included, but there is a power supply to handle up to (12) Lasers. -- Currently with Cabling for (4) fixed & (5) sliding lasers and positioning mounts; in 2006, Stand sold new for over ...$ 2,000 without lasers.NOTE: The feed chain was replaced in 1994 and a new saw sleeve was added in 2003, or about a year before retiring the machine from moderate use. The machine appears to have good feed chain life remaining.

STRIPTECH MODEL 200 8" Alligator Shear Description -- Model 200 --Blade Length 8" --Motor Size 3 HP --Foot Pedal Control Automatic/ Single Stroke

STRIP-TECH MODEL 3000 Wire Stripper --Motor: 3 HP, 220 or 440 volts, 3 phase --Drive: Gear Driven --Feed: Auto Feeding --Production: Approx 100 ft/minute --Machine Height: 37″ --Machine Length: 46″ --Machine Width: 18″ --Leg Construction: 2.00″ tube --Machine Wt: 580 lbs. --Wire Size: 1/8 to 3 inch O.D.

STROUP 4' X 20' Cold PressSpecifications: -- 50" x 244" End Loading, Segmented, Bag press with motorized daylight opening. -- (2) Individually actuated, 50" x 122", segmented platens. -- Single air bag per platen with approx., 50 PSI specific pressure. -- Motorized adjustable daylight opening from 9" to 56". -- End loading with (2) rows of spring-loaded pop-up rollers in lower platen for easy loading/unloading of the press.

SULLAIR - LS12-60- HH/A/SUL, ...Rotary Screw Air CompressorSpecifications & features: -- 60 HP - 1,770 RPM Motor, rotary screw air end, 150 max. PSI, 250 ACFM; (2) asymmetrical lobe profile rotors, only make contact on a lubricated pitch line to virtually eliminate capacity or efficiency loss. Features: -- Tapered roller bearings on the discharge and cylindrical bearings on the inlet for high load carrying capacity, pressurized fluid lubrication & cooling of the compressor with rigid piping and tubing; efficient 2-stage air/oil separation with replaceable element. Complete with: -- Spin on fiberglass fluid filter; Heavy Duty inlet air filter. -- Capacity modulator stabilizes system pressure and matches output to demand (minimizes need for Air Receiver & reduces wear caused by start/stop). -- Electromechanical gauges & controls, air aftercooling; mounted on a steel frame bed with fork cutouts. -- (73,500) Total operating hours.

SULLAIR 10B-50 ACAC Rotary Screw Compressor (Open Type)Specifications: -- 50 HP - 1,770 RPM Motor, rotary screw air end, 100-110 max. PSI, approx. 180 ACFM; (2) asymmetrical lobe profile rotors only make contact on a lubricated pitchline to virtually eliminate cap. or efficiency loss. -- Equipped with: -- Tapered roller bearings on discharge and cylindrical bearings on inlet for high load carrying capacity. -- Pressurized fluid lubrication & cooling of Compressor with rigid piping & tubing; efficient 2-stage air/oil separation with replaceable element. -- Spin-on fiberglass fluid filter, Heavy Duty inlet air filter, cap. modulator stabilizes system pressure and matches output to demand (minimizes need for air receiver & reduces wear caused by start/stop). -- Includes: -- Electro-mechanical gauges & controls, air after-cooling.

SUMMIT PR-9S 2-Ram Horizontal Baler -- Motor: 60 HP. -- Main Cylinder: 9". -- Eject Cylinder: 8". -- Feed Opening: 60" x 44" x 46". -- Cranston Wire Tie. -- Infeed Conveyor. -- Loaded onto your Truck.

SUPERBRUSH 13" Combination Brush/Drum Sander: -- SUPERBRUSH applications include, but are not limited to: White wood sanding, de-nibbing, sealer, and primer sanding applications, as well as UV roughing and reclamation projects. De-burring, graining, and polishing of steel, stainless steel polishing and aluminum finishing and solid surface materials. These sanders are well suited to shutter sanding, de-glossing and de-stressing. It can also be equipped with an optional sanding drum for surface sanding. -- 13" Sanding width, 9" min. part length and 4" max. thickness (varies with drum/brush style), or as thin as 1/32", 6" to 8" Typical Brush diameter; driven by a 1-3/4 HP motor, 3/32" per turn height adjustment, depth gauge included. Dimensions: 35"D x 42"W x 44"H. -- Rubberized conveyor belt grips and pulls parts through the sander. via 0 -10 FPM variable speed feed system. 1-1/2" Dia., rubber covered, infeed and outfeed rollers provide tension to support the belt over reinforced steel conveyor bed. Bristle contact gauge (depth gauge) included. -- RPM Gauge displays brush speed, variable 400 - 1,200 RPM. -- Dust Hood: (1) 4″ Port, Hinged At Back, 600 CFM min. recommended. -- Machine Design: Cast stand, zinc-plated steel bed, centerless ground column tubes. Ball bearings are sealed and permanently lubricated. -- Machine comes with one (1) drum or brush of choice based on application.Accessories: Casters, Infeed-Outfeed tables & DRO (Digital Depth Guage).Shipping Dimensions: (L x W x H): 34-½″ x 45-½″ x 46-½″. Shipping Weight: 300 Lbs (approx.).

SUPERBRUSH 36 x 2 Dual Brush Sander, (2) 7.5 HP Drive Motors.SUPERBRUSH applications include, but are not limited to: White wood sanding, de-nibbing, sealer, and primer sanding applications, as well as UV roughing and reclamation projects. De-burring, graining, and polishing of steel, stainless steel polishing and aluminum finishing and solid surface materials. These sanders are well suited to shutter sanding, de-glossing and de-stressing.36" Sanding width, 11" min. part length and 4" max. thickness; 1-1/2" to 3" Typical Brush length; 3/32" per turn height adjustment, depth gauge included. Sanding heads 9-1/2" diameter. (2) 7-1/2 HP main drive motors provide the ability to remove stock, and smooth the material in one pass.Rubberized conveyor belt grips and pulls parts through the sander. via 0 -15 FPM variable speed feed system1-1/2" Dia., rubber covered, infeed and outfeed rollers provide tension to support the belt over reinforced steel conveyor bed.Bristle contact gauge (depth gauge) included.RPM Gauge displays brush speed, variable 400 - 1,200 RPM.Hinged Dust Hood with (6) 4" vacuum ports, min. 1,800 CFM capacity Dust collection recommended.Machine Design: Cast stand, zinc-plated steel bed, centerless ground column tubes.Ball bearings are sealed and permanently lubricated.Accessories: Casters, Infeed-Outfeed tables & DRO (Digital Depth Guage).

SUPERBRUSH 49 Single Brush Sander, 7.5 HP Main Motor.SUPERBRUSH applications include, but are not limited to: White wood sanding, de-nibbing, sealer, and primer sanding applications , as well as UV roughing and reclamation projects. Deburring, graining, and polishing of steel, stainless steel polishing and aluminum finishing and solid surface materials. These sander are well suited to shutter sanding, de-glossing and de-stressing.49" Sanding width, 10" min. part length and 11" max. thickness (varies with brush style); 9" - 11" typical brush dia., 1-1/4" to 3" Typical Brush length; 3/32" per turn height adjustment, depth gauge included.Rubberized conveyor belt grips and pulls parts through the sander. via 0 -15 FPM variable speed feed system1-1/2" Dia., rubber covered, infeed and outfeed rollers provide tension to support the belt over reinforced steel conveyor bed.Bristle contact gauge (depth gauge) included.RPM Gauge displays brush speed, variable 400 - 1,200 RPM.Hinged Dust Hood with (3) 4" vacuum ports, min. 1,800 CFM capacity Dust collection recommended.Machine Design: Cast stand, zinc-plated steel bed, centerless ground column tubes.Ball bearings are sealed and permanently lubricated.Includes: (1) Brush and Caster Set

SUPERBRUSH 24 x 2 Double Brush Sander.SUPERBRUSH applications include, but are not limited to: White wood sanding, de-nibbing, sealer, and primer sanding applications, as well as UV roughing and reclamation projects. De-burring, graining, and polishing of steel, stainless steel polishing and aluminum finishing and solid surface materials. These sanders are well suited to shutter sanding, de-glossing and de-stressing.24" Sanding width, 11" min. part length and 4" max. thickness; 5/8" typical brush dia., 1-1/4" to 3" Typical Brush length; 3/32" per turn height adjustment, depth gauge included.Drive Motor: (2) 7.5 HP MotorsRubberized conveyor belt grips and pulls parts through the sander. via 0 -30 FPM variable speed feed system1-1/2" Dia., rubber covered, infeed and outfeed rollers provide tension to support the belt over reinforced steel conveyor bed.Bristle contact gauge (depth gauge) included.RPM Gauge displays brush speed, variable 400 - 1,200 RPM.Hinged Dust Hood with (4), 4″ vacuum ports, 1800 CFM min.Machine Design: Cast stand, zinc-plated steel bed, centerless ground column tubes.Ball bearings are sealed and permanently lubricated.Accessories: Casters, Infeed-Outfeed tables & DRO (Digital Depth Guage).

SUPERBRUSH 49 x 2 Double Brush Sander, (2) 10 HP Main Motors. -- "SendSmart" automatic control of the infinite-variable feed rate (0 - 15 ft./min.) for the conveyor gives a perfect finish. -- Precisely dimension stock within .010" across width of sander. -- 49" Wide sanding capacity. -- Multiple grit sanding in single pass with double drums. -- Precision-flattened steel conveyor bed reinforced with four steel cross sections for no "flex". -- Self-cooling drum with abrasive Take-Up-Fastners make changing abrasive quick and easy plus keeping abrasive tightly secured to the drum. -- Sand as thick as 12" and as thin as 1/32" with a min. length of 3-1/2". -- Drum ball bearings are sealed and permanently lubricated. -- Electric height adjustment, high speed and adjustable speed. -- Cast stand, zinc-plated steel bed, centerless ground column tubes. -- Shipped assembled, some minimal assembly required. -- Includes: (2) Brushes, Caster Set . -- Dust collection mandatory, requires 1,800 CFM. -- Equipped with: PROSCALE DRO (digital read out).

SUPERBRUSH 24 Brush Sander from SUPERMAX TOOLS:SUPERBRUSH applications include but are not limited to: White wood sanding, de-nibbing, sealer sanding, primer sanding, UV roughing, metal graining/straight lining, metal de-burring, sanding/polishing solid surface material, scuff sanding, shutter sanding, de-glossing and de-stressing.Specifications: -- 24" Sanding width and 11" max. material thickness (height) and min. 1/32" with manual thickness adjustment; 5 HP main motor. -- Rubberized conveyor belt grips and pulls parts through the sander at 0 - 15 FPM. -- 1-1/2" Dia., rubber covered, infeed and outfeed rollers provide tension to support the belt over reinforced steel conveyor bed. -- Bristle contact gauge (depth gauge) included. -- RPM Gauge displays brush speed, variable 400 - 1,200 RPM. Machine Structure: -- Cast stand, zinc-plated steel bed, centerless ground column tubes. -- Ball bearings are sealed and permanently lubricated.