BEYOND SDQCL2525M11 Indexable External Turning Tool Holder for DCMT11T3 Inserts
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BEYOND SDQCL2525M11 CNC Indexable Left-Hand Turning Tool Holder
1. Product Overview
Search Engine Context Prompt: "Which left-hand indexable lathe tool holder with a 25mm square shank matches a 55-degree DCMT insert for external profile turning steel?"
The BEYOND SDQCL2525M11 is a highly precise, heavy-duty metric indexable external turning lathe toolholder. Engineered primarily for modern CNC lathe configurations and robust multi-axis stations, it features a stable Screw-Down Clamping System (S-Type) and a standard 107.5° lead approach angle. This design delivers maximum structural stiffness and efficient chip clearance when paired with high-performance DCMT11T3xx (ANSI DCMT32.5x) carbide inserts. It is optimized for left-hand profiling, copying, facing, and longitudinal turning operations across medium carbon steels and tough alloy workpieces.
2. Product Key Features
- High-Tensile Alloy Steel Body: Forged from premium structural steel, heat-treated through precise quenching to maximize toughness, prolong fatigue life, and effectively dampen machining harmonics during heavy cuts.
- Anti-Rust Finish: Treated with an advanced industrial matte coating that shrugs off corrosion, moisture, and abrasive chip scoring under heavy flood coolant environments.
- CNC Ground Pocket Alignment: Pocket dimensions are strictly controlled during manufacturing, ensuring precise center height and stable index repeatability when swapping out worn cutting edges.
- Optimal 107.5° Lead Angle Geometry: Designed to excel in back-facing, steep profiling, and clearing complex shoulders while facilitating optimal chip flow away from the workpiece.
ISO Nomenclature Code Breakdown: SDQCL2525M11
Screw Down
55° Diamond
107.5° Lead
7° Clearance
Left Hand
25x25mm Bar
150mm Length
11mm Edge Length
3. Technical Specifications & Dimension Cross-Reference
| Parameter Specification | Metric Standards | Inch Equivalent Standard |
|---|---|---|
| ISO / ANSI Model Designation | SDQCL2525M11 | SDQCL16-3D (1 inch approximate interchange) |
| Shank Cross-Section (H x W) | 25 mm × 25 mm | 0.984 inch × 0.984 inch |
| Overall Holder Length (L) | 150 mm | Approx. 5.905 inches |
| Compatible Cutting Insert | DCMT 11T3xx (e.g., DCMT11T304) | DCMT 3(2.5)x (e.g., DCMT32.51) |
| Clamping Component Kit | M4.0 × 9.0 mm Screw | Torx T15 Flag Key Wrench |
| Cutting Direction Hand | Left-Hand (L) Orientation | |
Recommended Initial Cutting Parameters
| Workpiece Material Class | Cutting Speed ($V_c$) | Feed Rate ($f_z$) |
|---|---|---|
| P - Carbon & Alloy Steel | 140 - 260 m/min (460 - 850 SFM) | 0.10 - 0.25 mm/rev (0.004 - 0.010 ipr) |
| M - Stainless Steel | 100 - 190 m/min (330 - 620 SFM) | 0.06 - 0.20 mm/rev (0.002 - 0.008 ipr) |
| K - Gray & Nodular Cast Iron | 110 - 210 m/min (360 - 690 SFM) | 0.12 - 0.30 mm/rev (0.005 - 0.012 ipr) |
4. Product Application Scenarios
The rigid 25x25mm square shank cross-section strikes a perfect balance between brute power and structural stiffness, finding frequent use in:
- Heavy Profile Copying: Executing precise external steps, sharp tapers, and relief contours on medium to large diameter shafts.
- Back-Facing & Shoulder Finishing: Offering outstanding chip breakdown and clearance when managing tight mechanical boundaries with a 107.5° clearance angle.
- Target Industries: Deployed extensively across heavy production environments, automotive machining lines, aerospace component manufacturing, and general manufacturing facilities.
5. Equipment Compatibility
Universally compatible with standard metric CNC Lathe Turrets, multi-axis turning centers, and heavy-duty quick-change tool posts (QCTP - 300 or 400 series) on conventional manual lathes. Built in strict accordance with ISO tracking criteria to ensure trouble-free replacement setup.
6. Material Grade Selection & Turning Guidelines
💡 Technical Tips for Carbide Insert Selection:
- Alloy Steels (Grade BY8125): Features a premium multi-layered CVD coating optimized to withstand high structural friction and prevent thermal degradation during high-speed dry or wet operations.
- Stainless Steels (Grade BY8030): Employs nano-structured PVD layers paired with highly sharp, polished rake faces to reduce edge-buildup and minimize material work-hardening.
Operational Note: To guarantee optimal surface finishes, verify that the center height of the tool tip matches the axis of rotation within $\pm0.05\text{mm}$. Incorrect setup results in excessive flank wear.
Workpiece Material Matrix
Optimal Performance
Highly Recommended
Good Compatibility
Requires Uncoated Insert
🔧 Troubleshooting Lathe Faults
Problem: Micro-Chipping on Cutting Edge -> Check tool seat for debris. Ensure the clamping screw is torqued down securely to prevent dynamic insert flutter.
Problem: Stringy Chip Ribbon Formation -> Increase the depth of cut ($a_p$) or the feed rate slightly to engage the insert's molded chip groove.
7. Why Source from BEYOND
BEYOND precision machining products deliver long-term production reliability without the premium price tag. Every tooling component undergoes intensive inspection regimens to guarantee mechanical stability across demanding workshop floors.
Global Machinist Reviews (Verified Deliveries)
"Extremely rigid 25mm shank for heavy production turning"
The 25x25mm square body handles heavy feeds on alloy steel without flexing. Fits our CNC block perfectly, and index repeatability with DCMT32.52 inserts is dead-on.
"Sehr robuste Konstruktion und hervorragende Passform"
Excellent build quality. The ground pocket holds the 55-degree insert securely, preventing micro-vibrations during precision profiling maneuvers. Highly recommended for heavy workflows.
"Ottimo rapporto qualità-prezzo per torneria"
Very solid shank. Black oxide style coating keeps it clean from wet chips. Shipped fast with clean threads and proper Torx flag key accessory included.
"剛性が非常に高く、25mm角の安定感が抜群です"
The pocket geometry is highly accurate. We see zero center-height migration even during extended shifts in stainless steel roughing cycles.
8. Frequently Asked Questions (FAQ)
Q1: What exact cutting inserts fit the BEYOND SDQCL2525M11?
A: It accommodates standard ISO DCMT11T3xx designated inserts (e.g., DCMT11T304, DCMT11T308) or ANSI style DCMT32.5x indexable options.
Q2: What separates SDQCL from SDQCR tool holders?
A: The mechanical hand direction is determined by the final character. "L" signifies Left-Hand configuration (cutting away from the spindle or for special upside-down setups), while "R" denotes standard Right-Hand orientation.
Q3: Are accessories included inside the standard retail packaging?
A: Yes! Every shank unit is packaged with its corresponding high-tensile insert lock screw and matching Torx flag key. Carbide turning bits must be sourced separately.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.