Surface grinding machine SG series

for metal sheetstoolfor small workpieces

Overview
The SGA Series saddle-moving surface grinder is built for precision surface grinding of small-to-medium components with complex geometries. The cross-slide saddle layout combined with PTFE-coated guideways reduces friction, ensures smooth motion and stable support, and helps maintain long-term grinding accuracy.

Models

• SGA-40100AH
• SGA-40100AHR
• SGA-40100AHD

Basic machine data (from product listing)

• Max. longitudinal travel: 1130 mm
• Cross travel: 450 mm
• Max. distance from spindle center to table: 560 mm
• Table size: 400 × 1000 mm

Key Features

• Optimized structural layout: Cross-slide/saddle structure with PTFE-coated guideways to reduce friction and improve motion stability.
• Stable hydraulic table system: Closed-loop hydraulic drive for consistent longitudinal table feed across extended grinding cycles.
• Flexible vertical feed options: AHR models provide motor-driven vertical lift for manual adjustment; AHD models integrate servo motors and PLC control for programmable automatic infeed.
• Precision grinding performance: High-rigidity spindle and dynamically balanced grinding wheel deliver superior flatness and surface finishes (reported surface roughness down to Ra ≤ 0.4 μm).

Recommended Configurations

• Spindle system: High-precision spindle, spindle motor and cooling system.
• Feed & worktable: Ball screws, linear guideways, magnetic or mechanical clamping systems.
• Grinding wheel & head: Wheel adjustment device and dressing tools (manual dressing available).
• Safety & lubrication: Protective covers, safety doors, emergency stop, automatic lubrication and oil filtration.
• Options: Dressing tools, workpiece fixtures and HMI.

Application Case (example)

• Client: Precision tooling manufacturer (Italy)
• Use case: Surface finishing of mold plates and gauge blocks
• Model used in case: SGA-1000AHD with magnetic chuck and DRO
• Reported results: Flatness deviation ≤ 0.002 mm over 500 mm; surface roughness Ra ≤ 0.4 μm; reduced setup time and improved operator efficiency with servo automation.

Product Specifications (selected lines related to SGA models)

• Table size (W×L): 406 × 1020 mm (SGA-40100AH)
• Max. longitudinal travel: 1130 mm (SGA-40100AH)
• Cross travel: 450 mm (SGA-40100AH)
• Max. distance from spindle center to table: 560 mm (SGA-40100AH)
• Magnetic chuck size: 400 × 1000 mm (SGA-40100AH)
• Table longitudinal speed: 7–23 m/min
• Transverse auto feed: 0.1–8 mm/min; rapid traverse: 990 mm/min
• Wheelhead vertical auto feed (AHD selectable preset increments): 0.005 / 0.01 / 0.02 / 0.03 / 0.04 / 0.05 mm
• Grinding wheel speed examples: 1450 / 1750 rpm (large wheels) or 2850 / 3450 rpm (small wheels)
• Grinding wheel size examples (OD×W×ID): 350 × 40 × 127 mm or 200 × 20 × 31.75 mm
• Spindle motor: up to 5.5 kW (model-dependent)
• Hydraulic motor: model-dependent (example 2.2 kW)
• Cooling pump motor: e.g., 0.125 kW
• Elevating motor: AH ~0.25 kW; AHR ~0.5 kW; AHD uses servo elevating motor
• Max. table load (including magnetic chuck): up to 600 kg (model-dependent)
• Total rated power example: 9 kW (larger SGA group)
• Machine height example: 1890 mm (larger SGA models)
• Floor space example (L×W): 4400 × 2400 mm (larger variants)
• Gross weight examples: 3300–3700 kg (larger variants)

Notes

• AHD variants provide servo-driven automatic infeed and PLC/HMI programmability; AHR provides motor-driven vertical lift for manual adjustment; AH denotes conventional configuration.
• Target applications: precision surface finishing for tool and mold making, gauge work and small-to-medium precision components.

Technical specifications

• Series: SGA Series (saddle-moving surface grinders)
• Representative models: SGA-40100AH, SGA-40100AHR, SGA-40100AHD
• Table size (SGA-40100AH): 400 × 1000 mm
• Max longitudinal travel: 1130 mm
• Cross travel: 450 mm
• Max distance spindle center → table: 560 mm
• Magnetic chuck size (SGA-40100AH): 400 × 1000 mm
• Table speed (longitudinal): 7–23 m/min
• Transverse auto feed: 0.1–8 mm/min; rapid traverse 990 mm/min
• Vertical infeed resolution (AHD): programmable steps 0.005–0.05 mm
• Surface finish capability: surface roughness down to Ra ≤ 0.4 μm
• Grinding wheel options: up to 350 × 40 × 127 mm / 200 × 20 × 31.75 mm
• Spindle motor example: up to 5.5 kW
• Maximum table load: up to 600 kg