Dual-spindle, Dual ATC, Dual Z Axis design double raises machining efficiency.
PMM 300D
CNC DOUBLE COLUMN VERTICAL MACHINING CENTER
Heavy-Duty 4 Ton Table Capacity | BT50 Spindle | Siemens 828D Control
|
Make |
Pacemaker |
|
Model |
PMM 300D |
|
Configuration |
Double Column VMC |
|
Control System |
Siemens 828D |
|
Application |
Machining of cast iron, alloy steels and non-ferrous alloy parts |
MACHINE OVERVIEW
The Pacemaker PMM 300D is a heavy-duty CNC Double Column Vertical Machining Center designed for precision machining of cast iron, alloy steels and non-ferrous alloy components. Its rigid double-column configuration, stress-relieved FG260 grade cast-iron structure, roller-type LM guideways and C3-class ground ball screws provide a stable platform for large and heavy components.
The machine provides 2000 mm X-axis travel, 810 mm Y-axis travel and 810 mm Z-axis travel, with a 2200 x 1000 mm table capable of carrying up to 4000 kg. A BT50 spindle, 18.5/22 kW motor, 24-tool twin-arm ATC and Siemens 828D CNC system support demanding production machining.
KEY FEATURES
• Double-column VMC configuration for heavy-duty machining
• 2200 x 1000 mm working table
• Maximum table load: 4000 kg
• X/Y/Z travels: 2000 / 810 / 810 mm
• Roller-type hardened and ground LM guideways on X, Y and Z axes
• THK guideways / ball screw system
• C3-class hardened and ground ball screws, 40 x 10 mm
• 12,000 mm/min rapid traverse on all axes
• Cutting feed range: 1-10,000 mm/min
• Spindle speed: 100-6500 RPM
• Spindle motor: 18.5 kW continuous / 22 kW intermittent
• Maximum spindle torque: 350 / 495 Nm
• BT50 spindle taper
• 24-tool twin-arm automatic tool changer
• Linear glass scales for positioning accuracy Fagor , Siemens 828D CNC controller
MACHINING RANGE / WORK ENVELOPE
TABLE & CAPACITY
|
Parameter |
PMM 300D Specification |
|
Configuration |
Double Column VMC |
|
Table Size |
2200 x 1000 mm |
|
T-Slot Size |
25 mm |
|
Maximum Table Load |
4000 kg |
|
Bed & Columns |
Rigid, well stress-relieved cast iron - FG260 grade |
|
Simultaneous Interpolation Axes |
3 - X, Y and Z |
|
X-Axis Travel |
2000 mm |
|
Y-Axis Travel |
810 mm |
|
Z-Axis Travel |
810 mm |
|
X & Y Guideways |
Hardened and ground roller-type LM guideways |
|
Z Guideway |
Hardened and ground roller-type LM guideway |
|
Ball Screw Type |
Hardened and ground C3-class ball screw |
|
Ball Screw / LM Guideway Make |
THK |
|
Ball Screw Size - Each Axis |
40 x 10 mm |
FEED DRIVE
|
Parameter |
Specification |
|
Rapid Traverse - X |
12,000 mm/min |
|
Rapid Traverse - Y |
12,000 mm/min |
|
Rapid Traverse - Z |
12,000 mm/min |
|
Cutting Feed |
1-10,000 mm/min |
MAIN SPINDLE SYSTEM
|
Spindle Parameter |
Specification |
|
Spindle Speed |
100-6500 RPM |
|
Spindle Motor Power |
18.5 kW continuous / 22 kW intermittent (15 min) |
|
Maximum Spindle Torque |
350 Nm continuous / 495 Nm intermittent |
|
Spindle Taper |
BT50 |
|
Ram Counter Balancing |
Provided |
AUTOMATIC TOOL CHANGER
|
ATC Parameter |
Specification |
|
Tool Capacity |
24 tools |
|
ATC Type |
Twin arm |
|
Tool Holder Taper |
BT50 |
|
Max. Tool Diameter - Adjacent Tool |
125 mm |
|
Max. Tool Diameter - Adjacent Pocket Empty |
200 mm |
|
Maximum Tool Length |
350 mm |
CNC CONTROL SYSTEM
The PMM 300D is offered with a Siemens 828D CNC control system for three-axis machining. The control architecture is paired with the machine feed-drive system to provide coordinated X, Y and Z machining and precision positioning.
• Siemens 828D CNC controller
• 3-axis simultaneous interpolation
• High-performance servo axis control
• Suitable for heavy-duty double-column VMC applications
POSITIONING & REPEATABILITY - ISO 230-2
|
Accuracy Parameter |
PMM 300D |
|
Bidirectional Positioning Accuracy - X with Linear Glass Scale |
≤ 0.010 mm |
|
Bidirectional Positioning Accuracy - Y with Linear Glass Scale |
≤ 0.010 mm |
|
Bidirectional Positioning Accuracy - Z with Linear Glass Scale |
≤ 0.010 mm |
|
Bidirectional Repeatability - X/Y/Z |
≤ 0.008 mm |
GEOMETRICAL ACCURACY - ISO 8636-1 / EQUIVALENT
|
Geometrical Test |
Accuracy |
|
X-Axis Straightness - XY Plane |
≤ 0.010 mm |
|
X-Axis Straightness - XZ Plane |
≤ 0.010 mm |
|
Y-Axis Straightness - YZ Plane |
≤ 0.010 mm |
|
Y-Axis Straightness - XY Plane |
≤ 0.010 mm |
|
Z-Axis Straightness - YZ Plane |
≤ 0.010 mm |
|
Z-Axis Straightness - ZX Plane |
≤ 0.010 mm |
|
Squareness - X Table Movement vs Y Movement |
≤ 0.010 mm |
|
Squareness - Z Movement vs X Movement |
≤ 0.005 mm |
|
Squareness - Z Movement vs Y Movement |
≤ 0.005 mm |
|
Parallelism - Reference T-Slot vs X Movement |
≤ 0.010 mm |
|
Spindle Inner Taper Runout - Spindle Nose |
≤ 0.005 mm |
|
Spindle Inner Taper Runout - 300 mm Checkpoint |
≤ 0.010 mm |
BALL BAR & WORKING ACCURACY
Bi-directional circular deviation using Ball Bar testing in all three planes as per ISO 230-4: nominal path diameter 300 mm, feed speed 1000 mm/min, circular deviation ≤ 0.010 mm.
The machine is capable of demonstrating test-piece component machining and associated accuracies as per ISO 10791-7, M1_320/NAS test piece requirement.
Copyright © 2026 Pacemaker Solutions. All Rights Reserved. | Design by Beauxart