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Islands Of Automation
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RFID
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Safety Systems for Vertical LiftsEach Pflow vertical lift is designed with a variety of safety features that protect men, materials and machines better than any other lifting equipment. Features like spring-loaded safety cams, overtravel protection, safety gates and enclosures that meet or exceed all code requirements. Contact us for more information.
SOS System Stops Carriage Free FallThe Pflow Speed Operated Safety (SOS) senses and responds to the failure of any component in a mechanical lifting drive mechanism (chain/cable breakage or failures of the gear reducer, brake equipped motor, drive shaft or sprockets). SOS employs a unique escapement device that senses the descent speed of the carriage. SOS actuates the lift Safety Cams if the descent speed exceeds a predetermined velocity. The SOS escapement device is fail-safe and requires no lubrication or maintenance.
How SOS WorksThe Speed Operated Safety (SOS) is equipped
with a governor that is mounted at the top of the lift guide columns. As
the lift carriage moves up and down, the SOS governor spins at a fixed
rate that corresponds to the carriage travel speed. A weighted shaft on
the SOS device slides down an enclosure tube when the rotational angle of
the shaft reaches predetermined positions
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Vertical
lift with DeckLock System
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Vertical
lift without DeckLock System
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DeckLock Eliminates unsafe conditions during loading and unloading of vertical lifts. Prevents misuse of vertical lift. Automatically locks the vertical lift carriage at critical upper levels and eliminates carriage creep, bounce or drop. Provides 3:1 extra load capacity on two-post vertical lifts and 2:1 extra capacity on four-post vertical lifts.
Protects men, materials and machines by eliminating potential accidents caused by carriage creep or drop. Offers added assurance for safe loading and unloading with a forklift. Ensures that pallet jacks and hand trucks can load/unload smoothly, easily and safely. Prevents uncontrolled descent in the case of extra weight during loading/unloading operations. Carriage must be raised slightly to disengage DeckLocks. If lift is overloaded, carriage is prevented from lifting off the DeckLocks and safe support is maintained.
Simple, reliable, mechanical operation is standard. Pneumatic operation provided for multi-level applications. Exclusive safety system available only on Pflow Vertical Lifts.
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Safety Barriers
Safety barriers provide an extra measure of protection to Vertical Reciprocating Conveyors (VRC) by acting as a backup system to standard safety gates and doors. Installs directly to your Vertical Lift - behind the lift safety gate or door. Automatically closes off upper level openings when the carriage is not present.
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Safety Bars are in position at upper level opening as the Vertical Lift carriage is raised from a lower level. |
As carriage raises, it moves the Safety Bars up automatically (lower bar is raised to the upper bar level). |
When carriage is in position at upper level opening, both Safety Bars are at the highest position, completely out-of-the-way. When carriage is lowered again, the bars automatically are lowered into position to close off upper level opening. |
Raises completely out-of-the-way for loading or unloading of the carriage. Lowers back into position when carriage is lowered. Guards against open shafts and potential employee injury. Assures backup protection if the Vertical Lift safety gate or door interlock system is damaged or malfunctions. Fully Automatic - requires no controls or complicated mechanisms. Offers added assurance for safe operation of your Vertical Lift.
Highly recommended for use with opaque doors or with gates installed in poorly lighted areas.
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Gates & Enclosures
Provide maximum safety protection for VRC (Vertical Reciprocating Conveyor) installations. Heavy 3" x 4" vertical posts, offered only by Pflow, are more durable, won't bend on impact and ensure smooth, trouble-free operation. Expanded metal panels are more resistant to damage than woven panels, easier to repair. All gates are equipped with electro-mechanical interlocks and available in custom sizes.
Vertical acting gates are available in single and bi-panel models. Designed to save space, don't intrude into aisles, and are not easily damaged. Bi-panel models, with telescoping panels, offer the most space-efficient protection and require significantly less overhead clearance. Vertical acting gates are counterbalanced with an exclusive cross-shaft design. This ensures the gate remains constantly level when raised from either the right side, left side or center.
Non-binding UHMW sliding guides on vertical acting gates tolerate misaligned posts better than roller guides and are more resistant to damage. Chain is used instead of cable for greater strength and durability. Single or bi-parting swing gates and sliding gates are offered in a variety of widths. Tubular construction on swing gates allows for oversized gates to 7' width maximum.
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Single or bi-parting swing gates and sliding gates are offered in a variety of widths. Tubular construction on swing gates allows for oversized gates to 7' width maximum.
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Single and bi-parting swing gates are available in a variety of widths. Equipped with 7'8" post heights that permit passage of full 7' high loads. Maximum single-panel width is 7'. Bi-parting swing gates save space using smaller panels and come in standard sizes to 12' wide overall. Both types are available in custom sizes. |
Swing Gates conserve space and are excellent for many vertical lift applications
Sliding Gates are supplied with overhead track and 7'8" high support posts to permit passage of full 7' high loads. The maximum standard width is 11' overall. Custom sizes available. |
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Enclosure Panels are made of 8' high expanded metal. Standard panels are 1' to 5' wide and painted to match VRC. All mounting hardware is included. Nonstandard sizes, custom finishes and galvanized panels available on request.
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Enclosure panels are fabricated of expanded metal and structural angle in 1' increments up to 5' in width. Supplied with appropriate mounting hardware and painted to match the VRC. |
Accessories For An Exact Fit: Safety Gates & Enclosures can be equipped with a variety of accessories to fit your application. These include filler panels, inside and outside angles, wall fasteners, stiffeners and mounting hardware. Power operators are available on vertical and sliding gates.
Variety Of Gate Interlocks: There are a wide variety of safety gate interlocks to meet your exact application requirements (including environmental and explosion proof). Interlocks prevent the gate from being opened unless the carriage is at a designated level and also prevent carriage movement if the gate is not fully closed and locked.
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