• Counterbalanced mechanism for smooth operation. • Portable and easy to relocate for mobile applications. • Easy to handle smaller screens.
Gilson's Porta-Screen® has long been the accepted standard portable screen for quality control of construction aggregates at asphalt and ready-mix plants. Porta-Screen® models are designed for performance durability, yet are light enough to be portable. Designed for best separation in the 2in (50.8mm) to No.16 (1.18mm) range, it is often used to sieve materials to No.200 (75¼m). Porta-Screens are also useful for separations of many other materials. Capacity depends on test material characteristics but may range up to 60lb (27.3kg) per test. PS-3 holds five screen trays and pan. PS-4 holds seven trays and pan to permit two added mesh sizes per test. Vibration of both models is mechanically counterbalanced for smooth, stable operation; no mounting is required. A built-in UL-approved timer has LED display of remaining test time and issues a 5 second audible alarm at zero. Timer resets to repeat times which can be programmed up to 99 minutes, 59 seconds. A feature allows interruptions without loss of test time.
Five Coarse Series Screen Trays are included with each unit. Trays have 14x14in (356x356mm) screen area and are quickly secured for operation by dual hand clamp levers. When levers are released, trays are individually-removab
le for convenient emptying, cleaning, and weighing operations. Mesh sizes No.4 and larger have metal shields around edges to cover partial openings for accuracy of separations. Trays with wire cloth in the No.16 to No.80 (1mm to 180¼m) range have three added support ribs. No.100 (150¼m) and finer trays are supplied with backup cloth support. Replaceable mesh is available in all sizes. Cloth No.4 and larger is steel; fine mesh is stainless steel. Trays measure 16x16.5x3in (406x419x76mm), WxDxH.
The vibrating assembly is mounted on hardened guide pins. The 1/4hp motor, drive shaft, and connecting rod are synchronized with rotating weight counterbalance system. All are enclosed by the enameled steel case. The machine is quickly leveled by foot tab adjustment of the three support legs while watching an indicator bubble on the top frame. PSA-114 Porta Wheels may be attached for added mobility. Ball-bearing wheel assemblies with rubber tires are predrilled for quick attachment to frame of Porta-Screen®. PSA-312 Porta Cover bolts to the top flange to enclose the sample chamber. It has a latch, and is hinged to open for introduction of samples. PSA-367 Porta Sample Pan is helpful in emptying and cleaning trays and in weighing operations. This 17x30x4in (432x762x102mm), WxLxD chute-end pan is sized to fit inverted trays and hold entire samples for cumulative weighing. Handling is easy with the top sw…
• Counterbalanced mechanism for smooth operation.
• Portable and easy to relocate for mobile applications.
• Easy to handle smaller screens.
Gilson's Porta-Screen® has long been the accepted standard portable screen for quality control of construction aggregates at asphalt and ready-mix plants. Porta-Screen® models are designed for performance durability, yet are light enough to be portable. Designed for best separation in the 2in (50.8mm) to No.16 (1.18mm) range, it is often used to sieve materials to No.200 (75¼m). Porta-Screens are also useful for separations of many other materials. Capacity depends on test material characteristics but may range up to 60lb (27.3kg) per test. PS-3 holds five screen trays and pan. PS-4 holds seven trays and pan to permit two added mesh sizes per test. Vibration of both models is mechanically counterbalanced for smooth, stable operation; no mounting is required. A built-in UL-approved timer has LED display of remaining test time and issues a 5 second audible alarm at zero. Timer resets to repeat times which can be programmed up to 99 minutes, 59 seconds. A feature allows interruptions without loss of test time.
Five Coarse Series Screen Trays are included with each unit. Trays have 14x14in (356x356mm) screen area and are quickly secured for operation by dual hand clamp levers. When levers are released, trays are individually-removable for convenient emptying, cleaning, and weighing operations. Mesh sizes No.4 and larger have metal shields around edges to cover partial openings for accuracy of separations. Trays with wire cloth in the No.16 to No.80 (1mm to 180¼m) range have three added support ribs. No.100 (150¼m) and finer trays are supplied with backup cloth support. Replaceable mesh is available in all sizes. Cloth No.4 and larger is steel; fine mesh is stainless steel. Trays measure 16x16.5x3in (406x419x76mm), WxDxH.
The vibrating assembly is mounted on hardened guide pins. The 1/4hp motor, drive shaft, and connecting rod are synchronized with rotating weight counterbalance system. All are enclosed by the enameled steel case. The machine is quickly leveled by foot tab adjustment of the three support legs while watching an indicator bubble on the top frame.
PSA-114 Porta Wheels may be attached for added mobility. Ball-bearing wheel assemblies with rubber tires are predrilled for quick attachment to frame of Porta-Screen®.
PSA-312 Porta Cover bolts to the top flange to enclose the sample chamber. It has a latch, and is hinged to open for introduction of samples.
PSA-367 Porta Sample Pan is helpful in emptying and cleaning trays and in weighing operations. This 17x30x4in (432x762x102mm), WxLxD chute-end pan is sized to fit inverted trays and hold entire samples for cumulative weighing. Handling is easy with the top sw…
