Product Description
The SZGH-36J is a 2-axis slant bed CNC lathe manufactured by Shenzhen Guanhong Technology Co., Ltd. (SZGHTECH). It handles bar stock up to 35mm in diameter and disk-type blanks up to Ø250mm, achieving a machining accuracy of ±0.01mm and surface roughness of Ra 1.6μm. With a total machine weight of 1,800kg — 29% heavier than the SZGH-25 — it is engineered for more aggressive material removal and longer uninterrupted production runs. It is widely used as a direct replacement for hard-rail CNC lathes and 46-series large lathes running small parts, significantly improving output efficiency and reducing per-unit labor cost.
Parameter | Standard Value | Max Value |
Max. bar bore diameter | 35 mm | — |
Max. disk-type blank diameter (pellet) | Ø250 mm | Ø300 mm |
Max. workpiece length | 210 mm | 230 mm |
Single-side cutting depth (stainless steel) | 2 mm | 3 mm |
Machining accuracy | ±0.01 mm | — |
Surface roughness | Ra 1.6 | — |
Turning diameter (swing over bed) | 350 mm | — |
Square tool shank size | 16 mm | — |
Center height of tool holder | 40 mm | — |
Parameter | Standard Value | Max Value |
X-axis effective travel | 600 mm | — |
Z-axis effective travel | 230 mm | — |
X-axis rapid traverse | 25 m/min | 30 m/min |
Z-axis rapid traverse | 25 m/min | 30 m/min |
X-axis servo motor power | 1.2 kW | — |
Z-axis servo motor power | 1.2 kW | — |
Parameter | Standard Value | Max Value |
Max. spindle speed | 3,500 rpm | 4,000 rpm |
Spindle motor power | 4 kW (variable frequency) | 4 kW servo spindle (optional) |
Spindle nose taper | A2-4 | — |
Supported hydraulic chuck size | 6 inch | 8 inch |
Parameter | Value |
Footprint (L × W × H) | 1,750 × 1,400 × 1,800 mm |
Total machine weight | 1,800 kg |
Power supply | 380V / 50Hz (3-phase) |
Item | Specification | Standard Configuration | Optional |
Ball screw | Ø25 mm | Ball grinding precision grade | — |
Linear guide rail | Ø25 mm | H-class linear guide rail | — |
Bearings | — | Two-axis Harbin high-speed angular joint fusion bearing | — |
Spindle motor | 4 kW | Variable frequency drive type | 4 kW servo spindle |
Feed servo | 1.2 kW | SZGH Servo | — |
CNC control system | — | SZGH proprietary | SZGH |
Bed type | 30° | Slant bed | — |
Base | — | Heavy-duty anti-deformation patented base | — |
Clamping | — | Hydraulic clamping | — |
All parameters listed are for reference. The configuration in the final purchase order and physical acceptance shall prevail.
On the SZGH-36J, the 30° inclined bed geometry places the turret and cross-slide in direct structural alignment with the machine base along the primary cutting force vector. This means vibration generated during heavy bar stock turning travels the shortest possible path to the base mass — 1,800kg of cast iron that absorbs and dampens it rather than allowing it to resonate back into the workpiece. The result: consistent surface finish and dimensional accuracy even at the end of a 4-hour uninterrupted production cycle, not just at the beginning.
In practical terms, customers replacing hard-rail horizontal lathes with the SZGH-36J consistently report that the dimensional spread across a 500-piece batch tightens from ±0.05mm on their old machines to within ±0.01mm on the SZGH-36J — without any mid-run adjustments.
The SZGH-36J's machine base is cast from high-grade cast iron using SZGHTECH's patented anti-deformation casting process. The 1,800kg total weight serves two engineering purposes: first, it provides the inertial mass needed to suppress chatter when taking 2–3mm single-side cuts in stainless steel; second, it resists thermal deformation during prolonged production runs, maintaining axis geometry as the machine reaches steady-state operating temperature. This is a critical but often overlooked specification — lighter machines may hit tolerance at the start of a shift but drift as they warm up.
The SZGH-36J spindle is supported by two-axis Harbin high-speed angular contact fusion bearings — a notable upgrade over generic domestic bearings used in cost-focused competitors. Harbin angular contact bearings are engineered for high radial and axial load capacity at elevated spindle speeds, and all spindle assemblies on SZGH-36J units are dynamically balanced at the factory before shipment. The practical outcome: lower spindle runout, longer bearing service life between replacements, and a surface finish that holds Ra 1.6 even on extended stainless steel runs.
Compared to the 2.2kW spindle on the SZGH-25, the SZGH-36J's 4kW motor delivers nearly double the cutting power. This matters when processing 30–35mm stainless steel bar with a single-side cut of 2–3mm: the SZGH-25 would require a reduction in feed rate to stay within motor limits, while the SZGH-36J maintains programmed feed rates without compromise. For factories running mixed material batches — brass and aluminum at high speed, stainless steel at moderate speed — the 4kW spindle provides the headroom to handle all materials on a single machine without swapping equipment.
The SZGH-36J runs on SZGHTECH's self-developed control system — the same platform used across the entire SZGH machine tool range. Benefits for international buyers:
ISO G-code compatibility: Programs written for Fanuc 0i-style controllers migrate with minimal editing. Standard cycles (G71 roughing, G76 threading, G70 finishing) are fully supported.
Single-source support: Machine mechanical issues and control software issues are handled by the same engineering team in Shenzhen — no third-party controller vendor in the support chain.
English-language interface: The SZGH controller supports English display, reducing the learning curve for operators in non-Chinese-speaking factories.
Remote diagnostics: SZGHTECH's support engineers can connect via VPN for real-time controller diagnostics, reducing downtime resolution time significantly compared to waiting for a local technician.
The SZGH-36J was specifically engineered to slot into production lines currently running aging hard-rail CNC lathes or oversized 46-series lathes that are being used only for small parts (where their large swing capacity is wasted). The footprint — 1,750 × 1,400mm — fits within the floor space of most standard hard-rail lathe installations, and the SZGH controller's G-code compatibility means existing NC programs require only minor edits to run. Customers in Romania and Turkey report changeover times of 3–5 days from machine delivery to full production output.
The SZGH-36J processes copper, iron, aluminum, and stainless steel (304/316) bar stock within 35mm diameter, and open-forged disk blanks within Ø50mm. With hydraulic chuck, it also handles single-piece production of parts within Ø250mm.
Shafts, connecting rods, valve stems, wheel hub studs, brake components, steering column parts — the SZGH-36J's 4kW spindle and 3mm stainless steel cutting depth make it well-suited for the medium-duty turning operations common in automotive tier-2 and tier-3 supply chains.
Valve spools, cylinder end caps, fitting nipples, union bodies — the 35mm bar capacity covers the full range of standard hydraulic fitting stock in both stainless steel and brass.
Bolts, studs, threaded inserts, lock nuts — high-volume threading operations benefit from the SZGH-36J's rigid base and consistent spindle concentricity, which directly affects thread form quality across large batches.
Terminal pins, copper bushings, aluminum heat sinks, connector housings — where the SZGH-25 is constrained to Ø25mm, the SZGH-36J opens up the next size tier of electronic hardware components.
Small-batch job shop work where a single machine must handle diverse workpiece materials and dimensions. The 35mm bar capacity, 210mm workpiece length, and SZGH controller's conversational programming support make the SZGH-36J a versatile general-purpose turning center for custom work.
Material | Notes |
Stainless steel 304 / 316 | Single-side cut up to 2mm standard, 3mm max; carbide inserts recommended |
Brass / Copper | Excellent surface finish; high spindle speeds achievable |
Aluminum alloys | High feed rates; best surface finish at 2,500–3,500 rpm |
Carbon steel | Standard production material for all cycle types |
Cast iron | Suitable; dry cutting or air blast recommended |
Comparison Item | Typical Flat Bed Lathe | ||
Max. bar diameter | 35 mm | 25 mm | 25–40 mm (varies) |
Bed geometry | 30° slant | 30° slant | 0° flat |
Machine weight | 1,800 kg | 1,400 kg | 800–1,200 kg (typical) |
Spindle power | 4 kW | 2.2 kW | 2.2–4 kW (varies) |
Spindle bearings | Harbin angular contact | Domestic angular contact | Generic domestic |
Max. workpiece length | 210 mm | 150 mm | Varies |
Chuck size (standard) | 6" (up to 8") | 5" (up to 6") | 6"–8" |
Stainless steel max cut | 3 mm (one side) | 2.5 mm | 2–3 mm (varies) |
Chip evacuation | Gravity-assisted | Gravity-assisted | Accumulates on bed |
Hard-rail lathe replacement | ✅ Direct fit | ⚠️ Only for small parts | ❌ Not an upgrade |
Suitable production volume | High-volume batch | High-volume batch | Low–medium batch |
CE Certification — Compliant with European Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU.
ISO 9001 — SZGHTECH production and quality management system certified.
National High-Tech Enterprise — Certified by the Chinese Ministry of Science and Technology since 2018.
100+ Patents — Including anti-deformation base casting (utility model) and SZGH CNC control system software copyright.
The SZGH-36J handles bar stock up to 35mm in diameter. For disk-type forged blanks fed automatically, it supports up to Ø50mm; with a hydraulic chuck installed, it can handle single-piece parts up to Ø250mm (maximum Ø300mm).
The SZGH-36J handles a larger bar diameter (35mm vs 25mm), weighs 400kg more (1,800kg vs 1,400kg), uses a more powerful 4kW spindle (vs 2.2kW), and is fitted with Harbin high-speed angular contact bearings — a higher-specification bearing than the standard angular contact bearings on the SZGH-25. It supports a larger 6-inch hydraulic chuck (vs 5-inch on the SZGH-25) and a longer workpiece capacity of 210mm (vs 150mm). Choose the SZGH-36J when your bar stock runs 26–35mm or when you need the heavier machine mass for better chatter suppression during aggressive cuts.
Yes — this is one of the SZGH-36J's primary use cases. Many factories operate 46-series lathes (with Ø450mm+ swing capacity) purely for small parts within 35mm diameter, which is an inefficient use of a large, expensive machine. The SZGH-36J provides equivalent or superior accuracy for these small parts at a significantly lower machine cost, smaller footprint, and lower energy consumption. Existing G-code programs for the 46-series machine can be migrated to the SZGH controller with minor format adjustments.
The standard CNC system is SZGHTECH's self-developed SZGH controller. It supports standard ISO G-code, including all major turning cycles (G71, G72, G73, G76 threading cycles, G70 finishing). Programs written for Fanuc 0i-T controllers are largely compatible and typically require only minor format edits. SZGHTECH provides a bilingual English/Chinese programming manual and remote engineering support for program migration.
The standard maximum single-side cutting depth in stainless steel is 2mm, with a mechanical maximum of 3mm. For optimal tool life when cutting stainless steel 304/316, SZGHTECH recommends carbide inserts with a positive rake geometry, cutting speeds of 80–120 m/min, and continuous coolant flood.
Yes. The SZGH-36J is compatible with external automatic bar feeders for stock diameters from 8mm up to 35mm. Integrating a bar feeder enables continuous unattended production, where one operator can oversee multiple machines simultaneously — the core labor cost reduction use case for this machine.
The heavier machine mass serves two roles: vibration damping during cutting (less chatter, better surface finish) and thermal stability during long production runs. Lighter machines can drift dimensionally as they heat up from ambient temperature to steady-state operating temperature. The SZGH-36J's 1,800kg base acts as a thermal buffer, maintaining axis geometry consistency across a full production shift without operator re-measurement and offset adjustments.
SZGHTECH provides a 12-month warranty on all mechanical and electrical components, excluding consumables (cutting inserts, hydraulic oil, seals). Replacement parts ship at no charge during the warranty period. Remote support via WhatsApp video call is available 24/5. Customers in countries with established SZGH agent networks (USA, Turkey, Romania, Russia, Egypt, Thailand, Mexico) have access to in-country service representatives.
Standard production lead time is 20–35 working days from receipt of deposit. One 20-foot container typically accommodates 2–3 SZGH-36J units. Export packaging includes a wooden crate with anti-rust treatment and moisture barrier film. SZGHTECH's export team provides all documentation: commercial invoice, packing list, certificate of origin, CE declaration of conformity, and test report.
The SZGH-36J is in active production use at facilities in:
Eastern Europe: Romanian metalworking workshops (replacing hard-rail lathes), Turkish brass fittings manufacturers (35mm brass bar turning)
Southeast Asia: Vietnamese electronics component factories, Thai automotive tier-2 suppliers, Indian precision engineering SMEs
Middle East & Africa: Egyptian hydraulic fittings shops, Moroccan agricultural equipment component manufacturers
Americas: Mexican automotive supply chain, US regional distributors
Upgrading from a hard-rail lathe or downsizing from an oversized 46-series machine?
SZGHTECH's export team responds to all inquiries within 1 business day.
Email: export02@szghtech.com
WhatsApp / WeChat: +8618925223781
Model | Bar Capacity | Key Difference vs SZGH-36J |
25 mm | Smaller, lighter (1,400kg), lower cost — for parts under 25mm only | |
35 mm + side milling | Adds 4 side power heads: drill, tap, mill in one setup without re-clamping | |
35 mm | Alternative Z-type variant of the 36-series platform | |
45 mm | Larger bar capacity, higher accuracy (±0.0075mm), heavier duty |
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