Pedestal and swing-frame fettling grinders supplied into foundry cleaning rooms in 2026 are clustered around two motor-power bands: 3-10 HP (2.2-7.5 kW) for 12-18 inch wheels and 10-15 HP (7.5-11 kW) for 18-24 inch wheels, with rim speed holding at 80 m/s on resinoid and brazed-diamond spec sheets [S3][S5][S10].
Supplier geography is split between Indian OEM groups, who publish detailed spec sheets in the public catalogue, and Chinese OEM groups listed on B2B directories without equivalent spec disclosure, making spec-led sourcing effectively a two-tier exercise in 2026 [S1][S2].
Supplier Clusters and the Spec Bands They Publish
Indian manufacturers publish the most complete fettling-grinder spec data in the public domain. Ganesh Foundry Equipment, a manufacturer of snagging grinders, swing-frame grinders, and tumbling barrels under the Ganesh Quality Machines Pvt Ltd umbrella, lists wheel sizes of 12, 14, 16, and 24 inches paired to 3, 5, 7.5, 10, and 15 HP motors, with the main shaft on double-row ball bearings rated for combined radial and axial loads and a bottom-mounted motor configuration [S3].
Sri Vivegha Engineering publishes a four-model pedestal range, PG-12 through PG-20, covering wheel diameters 300, 400, and 450 mm with bore sizes from 38.10 to 152.40 mm, giving buyers a discrete bore-vs-diameter decision point that most competitors do not expose in their public sheet [S10]. Cast Grind Solutions publishes a single-end pedestal rough grinder at CWG-DT400 with a 400x40x100 mm wheel, 5.5 kW (7.5 HP) motor, 80 m/s rim speed, 340 kg machine weight, and a 720x1050x880 mm footprint, with the spindle bearings and spindle drive both described as oversized and maintenance-free [S5].
Pedestal vs Swing-Frame Format Map
The pedestal fettling grinder is a floor-mounted stationary spindle with a work rest, the operator presenting the casting to the wheel, and the swing-frame variant pivots the entire motor-and-spindle assembly on a heavy tube so the wheel swings into the casting. Ganesh rates the swing-frame line at 12-24 inch wheels with 5-15 HP motors, with the spindle dynamically balanced and belt-tensioned to keep the tube vibration-free [S3].
For a hardware-foundry cell the typical pedestal spec lands at 3.7-11 kW (5-15 HP) with a 300-500 mm resinoid-bonded wheel running 1600-2700 rpm, and the swing-frame band sits 16-24 inch at 7-11 kW, with the swing-frame scoring higher on stock removal but worse on thin-wall housing fit because wheel mass and pivot geometry overpower the part [S7][S8]. Buyers looking at the format decision side-by-side can use the fettling grinder selection spec map as a structured second opinion on motor-vs-wheel pairing.
Motor Power, Wheel Speed, and Rim Speed Discipline
Published rim speed is the discipline that separates a fettling grinder from a general-purpose bench grinder. Cast Grind Solutions publishes 80 m/s as the operating wheel speed on the CWG-DT400 pedestal, with a 400 mm wheel running 3821 rpm to reach that rim speed, and couples the spindle to a brazed-diamond wheel family rather than a resinoid wheel [S5]. Ganesh and Sri Vivegha spec sheets do not publish a single rim-speed figure, but the wheel diameter / motor rpm pairs resolve to the same 70-80 m/s band typical of resinoid snagging wheels at 1440-2880 rpm motor input [S3][S10].
Metal removal rates scale with motor power more cleanly than with wheel diameter on cast iron and cast steel. A 5 kW swing-frame with a 180 mm abrasive cup wheel removes 8-20 kg/h, and a 15 kW swing-frame with a 230 mm wheel removes 30-70 kg/h, with airborne dust loadings of 5-25 mg/m³ at the operator's breathing zone when LEV is fitted and 80-150 mg/m³ when it is not [S4]. The energy cost on the cleaning line, $0.40-$1.10 per kg of metal removed, is dominated by abrasive wheel consumption at 60-180 g of wheel per kg of metal cut [S4].
What Foundry Buyers Get from the Public Spec Sheet vs What They Have to Ask
Public fettling-grinder spec sheets in 2026 are consistent on wheel diameter, motor power, mass, and footprint, and thin on bearing L10 life, vibration amplitude, LEV hood port size, and dust-collection airflow requirement. Sri Vivegha is the only public Indian source that publishes bore-by-diameter in a single table (300x40x38.10, 300x40x50.80, 400x50x127, 400x50x152.40, 450x50x152.40 mm), which shortens bore-vs-spindle compatibility discussions with the abrasive supplier [S10].
For 2 000-6 000 m³/h of LEV airflow per station (the design range that keeps operator exposure below 10 mg/m³ of total inhalable dust) and dust collection ducting sized to that airflow, buyers usually have to ask the OEM, and B2B directories such as IPROS GMS list 38 grinding manufacturers in their catalogue with reference pricing compiled for surface, NC, and tool-and-cutter machines rather than foundry snagging units specifically [S1][S4]. Exportpages hosts a multi-language supplier index across 38 country sub-sites for general grinding machines, not for fettling units as a sub-category, which is a sourcing limitation when buyers want to compare a single-format class [S2].
Comparison: Supplier Format, Spec Disclosure, and Best-Fit Foundry Cell
Three supplier types are operationally distinct. Pedestal specialists (Ganesh, Sri Vivegha, Cast Grind Solutions) publish detailed sheets, expose bore-and-diameter as a buyable spec, and fit cells where the casting is brought to the wheel. Swing-frame specialists (Ganesh) publish wheel and motor data but usually not the pivot-tube mass or counterweight spec that controls vibration at 15 HP. B2B-directory aggregators (IPROS, Exportpages) list supplier counts and reference pricing for general grinding, not for foundry fettling units as a tracked sub-category, and buyers using those portals need to filter manually [S1][S2][S3][S5][S10].
For a cell mixing sub-1 kg electronics housings and 5-20 kg iron castings, the standard 2026 configuration is one PG-12 or PG-16 class pedestal (300-400 mm wheel, 3-7.5 kW) plus one or two handheld angle grinder stations, with a swing-frame held in reserve for the heavy riser-removal pass, a layout that matches both the Ganesh pedestal data and the electronics-housing decision map [S3][S8]. Buyers sourcing a larger cleaning line should cross-check pedestal and swing-frame models against the construction machinery and equipment reference for general cleaning-cell ergonomics and dust-collector integration.
What Buyers Should Not Buy from a Public Sheet Alone
Three items are systematically under-disclosed in 2026 public fettling-grinder spec sheets and should be requested as a quote-time addendum. First, LEV hood port diameter and recommended airflow in m³/h, which gate whether the installation meets a 10 mg/m³ operator exposure target [S4]. Second, spindle bearing L10 life at the rated radial load, which gates the maintenance interval on heavy two-shift foundry cells. Third, abrasive wheel consumption rate in g per kg of metal removed at the rated motor power, which is the single largest operating-cost line on a swing-frame unit at 60-180 g/kg [S4].
Buyers who need a high-stock-removal swing-frame for a 15-20 kg iron casting cell should also confirm the dynamic-balance grade and the belt-tensioning mechanism, since the Ganesh swing-frame design note specifies dynamically balanced spindles and a belt-tensioning arrangement specifically to control vibration on heavy loads, and that is a spec line that does not appear in competitor catalogues in the same form [S3]. For more on the spec-driven trade-offs between pedestal and swing-frame formats, the fettling grinder advantages and disadvantages map is a useful cross-reference.
Sourcing Channels and What to Track Next
Track two signals over the next two quarters. First, whether Indian OEM groups add rim-speed (m/s) and bearing L10 life to their public data sheets, since 80 m/s is already published by Cast Grind Solutions and would let buyers compare resinoid vs brazed-diamond platforms on a common metric [S5]. Second, whether B2B aggregators add a fettling-grinder sub-category the way IPROS currently separates general grinding into 38 manufacturer listings, since foundry buyers filtering for pedestal and swing-frame units in 2026 still have to do that filtering manually [S1].
Foundry cleaning cells sourcing a floor grinder for adjacent deburring of flat castings should treat the fettling-grinder supplier list as a separate, heavier-duty class: floor grinders run 1.5-3.0 kW at smaller wheel diameters and are not interchangeable with a 5.5-15 kW pedestal or swing-frame unit on riser and gate removal, even when both are called "grinders" in the OEM catalogue.