Circumferential slot cylindrical screens
Surface wires run continuously around the circumference of the cylinder with axial internal or external support rods. Engineered specifically for rotary drums, trommels, and internally-fed screening cylinders where material travels lengthwise along the rotating axis.
Smooth circular continuous slots allow internal flights or external spray scrapers to pass without catching.
V-wire taper widens outward or inward to prevent near-size particle pegging during continuous rotation.
Machined flanges, rolled support rings, quick-clamp ferrule ends, and integrated drive shafts.
Circumferential slot cylinder specifications
Engineering dimensional limits, slot accuracy, profile wire geometries, and alloy availability for radial wedge wire screen cylinders.
Standard & Custom Dimensional Tolerances
Values apply to radial circumferential slot screen cylinders manufactured to ISO 9001 and ASTM standards.
| Parameter / 规格参数 | Standard Range / 标准范围 | Custom Limits / 定制范围 | Tolerance / 公差精度 | Engineering Remarks / 技术说明 |
|---|---|---|---|---|
Slot Opening Aperture / Slot Width | 0.020 mm – 6.00 mm (20 µm – 6000 µm) | Down to 0.015 mm upon request | ±0.005 mm (fine) / ±0.015 mm (standard) | Continuous helical slot, non-clogging V-wire geometry |
Outer Diameter (OD) Outer Dimension | 25.4 mm – 1200 mm (1.0 in – 48.0 in) | Up to 1800 mm segmented cylinders | ±0.25 mm up to Ø300 mm; ±0.5 mm larger sizes | Machined roundness for close-tolerance scraper assemblies |
Cylinder Length / Height Overall Length | 50 mm – 6000 mm (single continuous piece) | Longer runs assembled with welded flange collars | ±1.0 mm (standard) / ±0.2 mm (machined ends) | Supplied with flush rings, standard bevels, or flange ends |
Support Rod Pitch Axial Rod Spacing | 6.0 mm – 50.0 mm center-to-center | Custom variable spacing for high differential load | ±0.30 mm pitch distribution | Axial orientation providing internal or external structural frame |
Flow Direction Options Filtration Vector | FOTI (Out-to-In) or FITO (In-to-Out) | Reversible flow profile with reinforced axial ribs | Factory certified configuration | Internal smooth surface available for internal mechanical wiper blades |
Surface Finish & Treatment Surface Quality | Mill finish, Pickled & Passivated (ASTM A380) | Electropolished (Ra < 0.4 µm), Hard chrome coated | Standard roughness Ra 0.8–1.2 µm | Degreased and ultrasonic cleaned for sanitary or high-vacuum use |
Resistance welded at every intersection point for high burst and collapse resistance.
V-shaped slot geometry widens inward to prevent particulate entrapment and blinding.
Manufactured with machined weld rings, threaded collars, ANSI/DIN flanges, or custom caps.
Every production batch includes optical slot verification and 100% material traceability.
Our application engineers provide slot opening optimization and structural collapse ratings for specific flow rates.
Circumferential slot cylinder applications
Heavy-duty wedge wire cylinders engineered for critical filtration, separation, and screening across demanding industrial operating environments.
Continuous V-wire geometry
Two-point particle contact eliminates clogging risks in viscous media.
All-welded construction
Resistance-welded intersections provide structural integrity under collapse loads.
Custom alloy selection
Fabricated in AISI 304, 316L, 904L, Duplex 2205, and Hastelloy C-276.
Need a custom slot geometry or material certification for your installation?
Send your drawings, operating temperatures, differential pressure limits, and slot tolerances. Our engineering team prepares technical proposals within 24 hours.
ISO 9001 certified manufacturing • Material test reports EN 10204 3.1 included
Request a custom slot cylinder specification
Submit your filtration drawings or operating parameters. Our technical engineers calculate flow area, collapse resistance, and weld integrity to deliver a detailed quote within 24 hours.
From 20 µm
±2 µm tolerance standard
304L / 316L / 904L
Hastelloy & Duplex 2205
Up to 350 bar
Hydrostatic burst certified
ISO 9001 / ASTM
Mill test certs included