HTC6511D Heavy-Duty Horizontal Boring & Milling Center-Qi Fa (Jiangsu) Machinery Co., Ltd.

HTC6511D Heavy-Duty Horizontal Boring & Milling Center is a heavy-duty machining solution designed for large and demanding workpieces. It features a T-type moving column structure, centered spindle box, and split-bed layout for improved structural stability. The main cast components are made from high-strength cast iron using resin sand casting and undergo two-stage aging treatment. Reinforced internal ribs and optimized structural proportions provide a rigid foundation for heavy cutting and long-term machining operations.

HTC6511D is widely used for machining large and heavy workpieces in industries such as:

· Large machine bases and structural components
· Construction and mining equipment parts
· Heavy industrial machinery components
· Large housings and mechanical parts
· Heavy-duty boring and milling operations

Heavy-Duty T-Type Bed Structure
The split-bed design separates the worktable bed from the column bed, with optimized length, width, and height proportions to provide strong structural support during heavy machining.

Reinforced Cast-Iron Construction
Major structural components use high-strength cast iron with dense internal reinforcing ribs. Resin sand casting and stress-relief treatment help maintain structural stability during continuous operation.

Integrated Milling and Boring Spindle
Precision rolling bearings support the milling spindle, while the internal boring spindle is driven through two pairs of keys and can move axially for combined boring and milling operations.

Automatic Two-Range Spindle Speed Control
The spindle automatically switches between high- and low-speed ranges, with stepless speed adjustment available within each range to accommodate different cutting conditions.

Automatic Guideway and Ballscrew Lubrication
Timed and metered oil pumps automatically lubricate the guideway and ballscrew assemblies, helping maintain stable lubrication performance during extended machining cycles.

Parameter	Specification
Model	HTC6511D
Spindle Diameter	110 mm
Spindle Nose Diameter	220 mm
Spindle Taper	BT50
Maximum Spindle Torque	1600 Nm
Maximum Spindle Thrust	18000 N
Main Motor Power	21 kW
Spindle Speed	20–1500 r/min
Recommended Maximum Drilling Diameter	Φ240 mm
Recommended Maximum Drilling Diameter	Φ50 mm
X-Axis Table Transverse Travel	1800 mm
Y-Axis Spindle Vertical Travel	1200 mm
Z-Axis Column Longitudinal Travel	700 mm
W-Axis Boring Spindle Axial Travel	550 mm
Distance from Spindle Center to Table Surface	110–1330 mm
Distance from Spindle Nose to Table Center	720 mm (Spindle Zero Position)
X/Y/Z-Axis Traverse Speed	1–6000 mm/min
Optional Configuration	Linear Scales for X/Y/Z Axes
Table Size	1250 × 1250 mm
T-Slot Width	28 mm
Table Rotation Mode	0.001°–360° Automatic Arbitrary Indexing (Standard Circular Encoder)
Maximum Table Load	10000 kg
Positioning Accuracy (X/Y/Z)	0.012 / 0.012 / 0.012 mm
Repeat Positioning Accuracy (X/Y/Z)	0.01 / 0.01 / 0.01 mm
Total Power Capacity (Approx.)	87 kVA
Machine Weight (Approx.)	23 t
Overall Dimensions (L × W × H)	4600 × 5000 × 4100 mm

This product supports customized solutions for different machining requirements:

· CNC system selection according to customer preferences
· Spindle configuration adjustment for different cutting conditions
· Customized X/Y/Z/W axis travel range
· Worktable and fixture solutions based on workpiece size
· Protective structure and automation options

Item	Details
MOQ	1 set
Standard Lead Time	Around 30 days
Payment Terms	30% T/T deposit, balance before shipment
Shipping Terms	FOB Shanghai, CIF or customized trade terms
Shipping Method	Sea shipment from Shanghai Port
Packaging	Protective wooden case packaging

Standard CNC machines are available for shorter delivery cycles, while special configurations such as 5-axis machines and gantry machining centers are produced according to customer orders.

Each machine is inspected before shipment. The company provides a 12-month whole machine warranty excluding wearing parts, 24-hour online technical support and quality feedback response within 24 hours.

Q1: What materials can HTC6511D Heavy-Duty Horizontal Boring & Milling Center process?

A: It is suitable for machining steel, cast iron and other industrial materials commonly used for heavy mechanical components.

Q2: What machining operations can this machine perform?

A: It can complete boring, milling, drilling and other precision machining operations for large and complex workpieces.

Q3: Can the machine be customized for different production requirements?

A: Yes. CNC system, spindle configuration, travel range and protective structures can be customized based on customer requirements.

Q4: What is the delivery time for this machine?

A: The standard lead time is around 30 days, depending on the selected configuration and production schedule.

Q5: Does the machine include after-sales support?

A: Yes. We provide a 12-month warranty and 24-hour online technical support for operation and troubleshooting assistance.

HTC6511D Heavy-Duty Horizontal Boring & Milling Center

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