Timesavers 42 RB series
Generation-dependent specifications, head configurations and qualification limits for Timesavers 42 rotary-brush finishing machines.
Tags: machines, deburring, edge-finishing, timesavers
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Identify the installed machine
Timesavers’ international listing gives 1,350, 1,525 and 1,600 mm working widths. A 1,400 mm blank exceeds 1,350 mm and fits nominally within 1,525 mm. The American page and 2024 brochure advertise about 2 mm maximum edge radius, while the international page advertises up to 3 mm. The 2024 brochure describes 50 × 50 mm parts with the standard vacuum table. Verify installed heads, hold-down contact and the required radius on representative edges. Timesavers LLC, 42 Series Rotary Brush, international listing, 2024 brochure.
Record serial number, build year, working width, head sequence, control, hold-down and extraction. Identify abrasive tools separately. The American page describes modular, dry operation.
Published dimensions vary by source
The following are source-specific descriptions, not interchangeable specifications:
| Manufacturer source | Width and configuration information | Opening and feed information |
|---|---|---|
| Company brochure, Version 1, 2024, pp. 22–23 | 1350 and 1600 mm; eight rotary brushes | 1–100 mm table opening; 0.2–8 m/min transport speed |
| Company brochure, Version 1, 2025, pp. 22–23 | Introduces 1525 mm; one to four heads, including top-brush configurations | 1–100 mm table opening; 0.2–8 m/min transport speed |
| Current international 42 series page | Lists 1350, 1525 and 1600 mm; one to four heads | 0–100 mm table opening; 0.2–8 m/min transport speed |
| Current American 42 Series page | 52 in (1350 mm) and 63 in (1600 mm); one to five heads | 0–4 in bed opening |
Sources: 2024 brochure, 2025 brochure, international product page, American product page. The brochure editions above are printed on their covers; upload paths do not establish the edition.
Check part height, protrusions, orientation, contact area and head clearance within the installed opening. Verify the feedable thickness range separately.
Bounded selection example: a 1400 mm-wide flat blank exceeds a documented 1350 mm working width, while it is nominally within a 1525 mm width. That comparison screens the width requirement only. It says nothing about retaining the blank, feeding it reliably, accessing its internal edges or achieving the specified finish.
Heads perform different jobs
The 2024 brochure distinguishes configurations for deburring, edge rounding, oxide removal, finishing and heavy slag removal. It identifies wide-belt, rotary-brush and hammerhead tooling; the available sequence determines which operations can be combined. Its standard rotary assembly uses four clockwise and four counterclockwise brushes. Timesavers, Version 1, 2024, pp. 22–25
Specify burr removal, edge radius, oxide removal and surface texture separately. Identify the faces and internal edges to treat, and check whether the reverse side needs another operation.
The 2025 brochure introduces redesigned wide-belt and top-brush heads. It describes HMI-adjusted wide-belt position, stored recipes and a combination of six top brushes with eight rotary brushes. These are generation/configuration claims; the brochure does not prove that a particular earlier 42 RB has those features. Timesavers, Version 1, 2025, pp. 22–23
A stored recipe is useful only with the tooling and incoming-part conditions for which it was qualified. Keep the abrasive identification, wear condition, enabled heads, feed setting and part orientation with the recipe. Replacing a brush type while retaining a program name does not preserve the physical process.
Abrasives and brush selection
Timesavers publishes separate 42 RB brush selections for different applications. For example, its R+ brush overview lists aluminium-oxide #120, 3 & 5 mm flaps, item 59975121AO35120 for medium edge rounding and surface finishing of steel, aluminium and stainless steel. It separately lists Cross Flex brushes for non-directional finishing/removal of milling marks and metal-wire brushes for oxide removal. The manufacturer requests the machine serial number with parts enquiries. Timesavers Originals brush overview, 42 RB table
That example identifies a catalogued tool and intended application, not a universal grit recommendation. Select tools against the required material removal, accessible geometry and allowable surface change. Ask the supplier to confirm compatibility with the installed assembly; the linked file does not show a printed revision date, so its upload-path year is not treated as a revision statement.
Radius, finish and part retention need qualification
The 2024 brochure and American page advertise edge radii up to approximately 2 mm; the current international page advertises up to 3 mm. These claims must remain attached to their source and configuration. Neither establishes a minimum radius on every internal corner or a radius tolerance for an arbitrary production part. 2024 brochure, pp. 22–25; American product page; current international product page
The 2024 brochure also describes 50 × 50 mm small-part treatment with the standard vacuum table. Treat that as a stated application boundary requiring confirmation, not permission for any perforated or irregular 50 mm component. Effective hold-down depends on the actual part and installed system. Timesavers, Version 1, 2024, pp. 22–23
Qualify representative coupons or production samples against explicit acceptance criteria: residual burr, edge-radius limits, oxide removal, visible texture, critical dimensions and preservation of coatings or protective film. Include difficult internal features and leading/trailing edges. Record pass count and orientation. A successful large flat sample does not qualify a narrow strip, a formed component or a part with little support area.
Materials, extraction and operating limits
Timesavers discusses mild steel, stainless steel, aluminium and coated materials, and links the extraction choice to the material being processed. Its guidance describes wet extraction for different metals including flammable materials, while noting dry extraction as an option for steel-only processing. This is not a universal authorization to mix metal dusts or connect any available collector. Confirm the approved material/extraction combination for the installation. Timesavers, RB-series material guidance
Use the machine-specific manual for safe feeding, guarding, adjustment, tool changes and maintenance. The public brochures do not establish a universal belt/brush pressure, feed speed, minimum part geometry, dust-control design or guaranteed tool life. For purchasing and quoting, distinguish verified installed hardware from a demonstrated process window and from an untested request.