Pneumatic expanding
Pneumatic expanding
Overview
This document provides technical specifications and options for a rotary valve assembly, focusing on air inlet configurations, valve body dimensions, mounting options, bushings, expanders, and construction materials.
Air Inlet Configurations
- Front inlet through cover
- Rear inlet through journal
Valve Rotary Fitting
The valve rotary fitting is characterized by the body diameter and the number of expanders:
- 5 expanders
- 6 expanders with diameters Ø69, Ø75, and Ø148
- Special configurations available
Machine Mounting and Bushings
Multiple mounting options are provided, primarily flange-mounted and foot-mounted bushings for journal ends with different diameters and lengths:
- Journal-end diameters: Ø35 (long and short), Ø45 (long and short)
- Applicable to body diameters Ø69, Ø75, and Ø148
- Mounting types:
- Flange-mounted bushings
- Foot-mounted bushings
- Special mounting options are also available
Expanders
Expanders are components that fit into the valve body and come in different types and materials:
- Types:
- Linear
- Rubber
- Segmented
- Special
- Materials:
- Rubber with expansion ranges of +Ø4mm and +Ø9mm
- Aluminum
- Special materials available
Construction Materials
The main components of the valve assembly are made from specific materials to ensure durability and performance:
- Journal-ends: F-125 AISI 304 stainless steel or special materials
- Body: Aluminum extrusion F-125 or special materials
- Covers: Aluminum AISI 304 or special materials
- Bushings: F-125 AISI 304 or special materials
Summary of Critical Parameters and Options
- Air inlet can be configured at front or rear depending on application
- Valve body diameter and number of expanders must be selected based on required flow and mechanical constraints
- Mounting options and bushings must match journal-end diameter and length for proper fit and function
- Expanders vary in type and material to accommodate different expansion ranges and operational needs
- Material selection focuses on corrosion resistance and mechanical strength, primarily using AISI 304 stainless steel and aluminum alloys
Catalog excerpts
Pneumatic expanding cantilever shafts
Open the catalog to page 1
Pneumatic expanding cantilever shaftsAgility and precision This type of expanding shafts is designed to speed up the loading and unloading process. Being anchored at one end, the other end remains free to perform loading and unloading without moving the shaft from its position. This design is intended for medium/low loads, although optional reinforced designs are available to increase load capacity. Standard and specialdesigns To facilitate stress calculation, in addition to the supply, we have standardized a series of cantilever expanding shaft models with their respective bushings for machine...
Open the catalog to page 2
Expansion range: Expansion range: Special body dimensions on request: 0 25 to 0 300 mm
Open the catalog to page 3
The standard flange bushings, designed for pneumatic shafts sized 069 / 075, offer a reliable anchoring solution for cantilever shafts installed in machines with vertical frames. These bushings are precisely machined from a single piece, ensuring exceptional performance in terms of stiffness and concentricity. By maximizing contact with the vertical frame, the wide flange surface provides optimal stability and precise alignment.
Open the catalog to page 5
The standard flange bushings, designed for pneumatic shafts sized 0148, offer a reliable anchoring solution for cantilever shafts installed in machines with vertical frames. These bushings are precisely machined from a single piece, ensuring exceptional performance in terms of stiffness and concentricity. By maximizing contact with the vertical frame, the wide flange surface provides optimal stability and precise alignment.
Open the catalog to page 7
Our standard bushings for 069 / 075 / 0148 shafts offer a reliable solution for anchoring cantilever shafts on machines with horizontal frames. The foot-mounted bushing is composed of two parts, meticulously designed and manufactured to ensure optimal performance in rigidity and concentricity.
Open the catalog to page 9
The expanding shafts selection table provides an overview of the stress calculations for the set formed by the expanding shaft and selected bushing. Key factors such as coil weight, length, and other relevant specifications are considered. The table is a valuable tool for easily selecting the correct model. For precise recommendations, consulting the technical team is advised.
Open the catalog to page 11
Expanding shafts selection table
Open the catalog to page 12
Flange-mounted bushing for journal-end of 035 (long) - 0148 □ Flange-mounted bushing for journal-end of 035 (short) - 0148 Flange-mounted bushing for journal-end of 045 (long) - 0148 Flange-mounted bushing for journal-end of 045 (short) - 0148 Flange-mounted bushing for journal-end of 035 (long) - 069/075 □ Flange-mounted bushing for journal-end of 035 (short) - 069/075 Flange-mounted bushing q for journal-end of 045 (long) - 069/075 Flange-mounted bushing q for journal-end of 045 (short) - 069/075 g Foot-mounted bushing for journal-end of 035 (long) - □ Foot-mounted bushing for journal-end of...
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