VTS SL71
Fully Automatic STOP Cylinder Screen Printing Machine
(4-post screen lift type—flagship model)
linked with feeder
VIDEOS:
SL 4-post screen lift type, as SPS’s flagship model, is based on the superior German lineage classic: the “Original SPS STOP Cylinder Principle” (advantages: highest run speed, printing quality, operator convenience and comfort ever seen in the market), upgraded with the unique 4-post screen lift design: large opening under screen allowing comfortable operator access, for observing sheet flow (runs with screen lifted), and screen cleaning, significantly upgrades setup efficiency and comfort degree, plus the primeline luxury class optimization, for modern high speed automatic screen printing processes to use.
SPS feeder offered in choice of 2 types: Rear pick-up type SPS FYR EP71, and front pick-up type SPS FVF FP71, depending on the substrate type and thickness.
Max. speed 4,000 cycle/hour (with rear pick-up feeder) or 2,500 cycle/hour with FP front pick-up feeder.
Max sheet size 750x1060mm depending on model.
APPLICATIONS: Suitable for paper, plastic, etc. flexible sheet substrates, to be printed graphic images, special effects (varnish, relief, particle, gloss…), or industrial functional pastes (conductive, covering…), such as:
• Graphic Printing: posters, packaging boxes/ wraps, book covers, stickers, greeting cards, labels/tags, braille, scratch-offs…
• Industrial Printing: transfers/decals (textile, ceramic, bikes, sports devices…), automotive/appliance dashboards/panels (IMD/FIM...), security cards (credit, ID…), membrane switches…
• Circuit Printing: flexible circuits (circuits, conductive contacts…), electronic labels, sensors…
• Opto-electronic Printing: electro-luminescence (electrode, emission layer…), flexible cover-lenses…
• Bio-medical Printing: health-care test strips (blood sugar…).
• Green Energy Printing: thin film batteries…
A) Advanced Offset Feeder: No crossbar obstruction over front of feeder. Operator can stand up for comfortable operation. Both sides open, convenient for pile adjustment. Steel plate goes to the floor, easy manual load or w/pallet jack.
B) Feeder Head: Advanced feeder head with controls for multiple blast air for sheet separation, vacuum strength, suction cups angle/spread position, skew correction provides an advantage when running deformed sheets.
C) Infeed Conveyor Vacuum: Vacuum volume fully opened or closed, and adjustment can be increased or decreased incrementally.
D) Screen Setup Space: Top frame 4-post lift, screen tilt, exit belt fold down, screen slide-in loading from operator side, central screen adjustments + pneumatic frame lock-in. Provides maximum comfort and access for operator fast and convenient settings for cleaning screen, cylinder, + other adjustments.
E) Screen Adjustment: Screen adjustments centralized, convenient for adjustment at one-position, from delivery end or operator side.
F) Screen Holder Frame: Designed with screen tilt to gather ink at print end, prevents flow-back and dripping through mesh holes of low viscosity inks.
G) Screen Off-Contact Distance: Screen to cylinder distance 1.5mm. Lower off-contact improves registration tolerances. Minimizes mesh to be pressed down by squeegee for increased life of screen. Less mesh stretch and deformation.
H) Squeegee: Optional German RKS C05 carbon back-plate squeegee (one piece). Strong in support (no bending) and light-weight. Changed in 1 second by switching a nearby pneumatic clamp. Carbon plate helps dissipate static.
I) Squeegee Level Adjustment: Only 2 seconds for automatic setting by machine from pushing 2 buttons, fast and constantly accurate always, regardless of operator skill level.
J) Squeegee Pressure: Pneumatic + electronic + hydraulic triple controls (stabilizing), automatic equalization. Includes dynamic automatic adaption to level variance.
K) Squeegee Angle: No need of tool for adjustment. Squeegee blade position remains unchanged and constant, adjustment is fast and convenient.
L) Print Stroke: Print stroke digitally settable according to sheet length. Squeegee accurately falls beyond grippers in settable range. Lengthens life of screen and squeegee. No risk of ripping
screen.
M) Delivery Conveyor: Belts run in variable speeds. First synchronized with cylinder speed (delivery-sheet out). Secondly synchronized with dryer conveyor speed (transferring sheet to dryer). No risk of scratching sheet.
N) HMI: Main HMI placed at operator eye level. Clear icon and text display for operation conditions, error displays, for easy operator use & control.
O) Sheet Side Guides: Vacuum suction and pulling from bottom side, prevents damage to sheet surface (with optional vacuum-push mode for thicker / heavy sheets).
P) Anti-Drip: Squeegee with optional swivel drip pan device, to collect ink drips from squeegee, effectively prevents print quality defects due to ink drip.
Q) Anti-Splash: Designed with solution against risk of splash (out of screen) of low viscosity ink (varnish) during high speed runs. Splash guards synchronously activated open/close along with screen clamping/release action, convenient for production runs using low viscosity ink.
R) High Speed (3000 p/h~): Equipment can comfortably adapt to long time high speed run up to max. nominal 4500p/h (mechanism weight-load well balanced and fine-tuned, thus low in vibration, noise and wear).
S) Maintenance: Automatic oiling for all mechanisms, with oil level detection and warning indication. No need for frequent oiling, lessens work burden and lengthens life of mechanical functions (often seen used for over 35 years).
| Specification | SL71 Metric Units | SL71 Unit Conversions |
|---|---|---|
| Maximum sheet size (mm) | 750 x 1060 | 30" x 42" |
| Minimum sheet size (mm) | 280 x 420 | 11" x 17" |
| Maximum Cycle Speed (per hour) | 4000 | 4000 |
• Auto-lubricated balanced drive system, performs constant stability and accuracy in high/low speed and long/short run (feed-in – registration – printing – delivery).
• Finely produced cylinder integrated sequenced vacuum/blowback and grippers, for controlled printing stability with even ink deposit.
• Front stops + vacuum side guides + optical sensors sheet registration system, working with Non-Print / Auto-Stop protective controls, prevents sheet waste.
• Screen loading from above + guides + centralized 3-point screen adjustments, for convenient, comfortable, and quick setup.
• Pneumatic screen tilting in large-angle, provides opening under screen allowing operator access for screen cleaning (assisted by delivery belt fold-down), upgrades setup efficiency; Working with Auto-Stop programs, swivel anti-drip pan device to collect ink drips from squeegee for quick change ink removal, increased accessibility to screen, and easy screen cleaning.
• PEH multiple controlled squeegee pressure + electronic sequence/stroke system, squeegee is automatically leveled for accurate consistent print quality.
• Knobs + micrometer with numbered indicators for squeegee set-down system offering accurate fine-setting.
• Squeegee bridge pneumatic tilting + drip pan, for fast removal of squeegee off screen and decreased changeover time.
• Delivery belt exit fold-down, provides easy access for service (assisted by screen tilt).
• High-level master-control PLC + attentive control programs + package movements, for operation ease of use and error-proof.
• Eye-level high-positioned operator interface + multiple nearby control panels, for user-friendly operations.
• Error diagnose/indication and history record, on-line remote diagnose.
SPS Vitessa SL Brochure pdf| Option | SL71 |
|---|---|
| Original SPS® STOP Cylinder Principle™ | standard |
| Sheet alignment system for invariable dot-to-dot registration | standard |
| Vertical 4-post lift of top frame with screen carrier and squeegee bridge | standard |
| Swivel-up squeegee bridge and screen carrier (set-up position) | standard |
| Quick screen-change function: unlock and pull-out / push-in and lock | standard |
| Drop-down delivery belt segment (for cleaning and set-up) | standard |
| Leveled-off protected gripper recess with minimum off-contact | standard |
| Polished stainless-steel vacuum cylinder in micrometric precision, with blow-back | standard |
| Individually spring-loaded sheet grippers with ejectors in the cylinder | standard |
| Opto-electronic sheet lay stop and pass detection: infeed, front and side lays, delivery | standard |
| Rear pick-up stream and single sheet feeder SPS® SF with vacuum infeed table | standard |
| Offset type TP feeder head, independent pick-up and forward suckers; sheet skew | standard |
| Compressed air nozzles for enhanced sheet separation from pile | standard |
| True size scales / gauges for format adjustments; central size tuning of feed board equipment | standard |
| Centralized side guide positioning, externally accessible | standard |
| Vacuum side guides, with fine-tuning for pulling force | standard |
| Sheet delivery with vacuum hold-down and solvent vapor extraction | standard |
| Adjustable sheet deflector guides in the delivery section | standard |
| 3-point screen adjustment, central B-side position, pneumatic lock-in | standard |
| Screen carrier with pneumatic frame clamping, prepared for pre-registration | standard |
| SPS® PEH squeegee unit with central pressure control and read-out | standard |
| Horizontal squeegee bridge adjustment (”top position”) | standard |
| Digital squeegee set-point control, gripper margin and active print path adjustable | standard |
| Pneumatic quick clamping of squeegee holder and flood coater profile | standard |
| Equipment package for low-viscosity media (drip protection, control program) | standard |
| Operator panel with all main functions in central B side position, clear text indications | standard |
| Equipment for on-line service data transfer | standard |
| Stainless steel machine paneling; walk-ways on A and B sides | standard |
| High-pile version with EP feeder (max. + 300 mm) | optional |
| Non-stop facility on EP feeder (push-in rods) | optional |
| Pre-stacking frame with EP feeder, incl. 2 pcs. roller skid boards | optional |
| Servo-motorized sheet infeed with EP feeder (slip compensation) | optional |
| Single sheet front pick-up feeder SPS® FP - with servo-controlled slow-down | optional |
| Sheet cleaning device, integrated in the feeder belt table (various types) | optional |
| Anti-static basic set: discharge electrodes | optional |
| Anti-static extension: ionized blast air | optional |
| Anti-static upgrade package for industrial applications on film substrates | optional |
| SPS® serismart F: motorized format adjustment with digital size input | optional |
| Additional push mode on side guides, convertible | optional |
| SPS® synchroline package with synchronized sheet delivery (in combination with dryer) | optional |
| Motorized squeegee set-down with SPS® autoset height leveling | optional |
| SPS® C05 squeegee blade system (RKS) with pneumatic holder, with angle adjustment | optional |
| Print length correction system (adjustment to fit) | optional |
| Enhanced GS safety package: light barriers with controlled overrun function | optional |
• High raise, following upstream Feeder.
• Anti-static device, eliminates static charge on plastic sheets for smoother uninterrupted operation.
• Print length correction system, corrects screen mesh deviation.
• C05 squeegee system, improves printing quality, fast changeover, lightweight, and carbon plate dissipates static.
• Synchroline control, for in-line control and automatic speed syncing.
• Other options available for corresponding process requirements.
• Anti-static device, eliminates static charge on plastic sheets for smoother uninterrupted operation.
• Print length correction system, corrects screen mesh deviation.
• C05 squeegee system, improves printing quality, fast changeover, lightweight, and carbon plate dissipates static.
• Synchroline control, for in-line control and automatic speed syncing.
• Other options available for corresponding process requirements.