Power Press Series
Deep Throat Power Press
Heavy-duty C-frame power press with extended throat depth up to 450 mm, engineered for center punching, notching and forming on wide panels and enclosures that standard presses cannot reach. Available from 25 to 400 tons across 11 models — ideal for HVAC, signage, electrical enclosures and large-panel stamping applications.
- Tonnage Range 25 – 400 Tons
- Throat Depth up to 450 mm
- Stroke Rate up to 100 SPM
- Pneumatic Clutch & Brake
Extended Reach
15+
Years Experience
80+
Countries Served
3000+
Presses Delivered
CE&ISO
Certified Quality
Product Overview
Extended Throat Depth. Engineered for Large Panel Stamping.
The KAVDO Deep Throat Power Press (J21S Series) features an extended throat depth of 210–450 mm, enabling stamping operations far from the sheet edge on oversized workpieces — without the cost of a straight-side press. The stress-relieved welded steel frame with FEA-optimized ribs maintains full rigidity at maximum tonnage and full throat extension.
- Throat depth 210–450 mm for deep-reach operations
- FEA-optimized welded steel frame with ribbed reinforcement
- Pneumatic clutch & brake, hydraulic overload protection
- Six-sided rectangular slide guide for precision forming
Performance Highlights
Key Advantages
The KAVDO deep throat power press overcomes the reach limitations of standard gap-frame presses, providing full stamping tonnage at extended throat depths — with the same proven reliability, safety and ease of operation you expect.
Extended Throat Depth
With throat depths ranging from 210 mm to 450 mm — nearly double that of standard gap-frame presses — the deep throat design allows punching, notching and forming operations at the center of wide panels up to 1000 mm across. This eliminates the need for expensive straight-side presses in many large-panel applications.
Reinforced Frame Rigidity
The welded steel frame features FEA-optimized internal ribbing and stress-relieved construction that minimizes angular deflection at full throat extension under maximum tonnage. Frame deflection stays within 0.05 mm/m, ensuring consistent forming accuracy and extended die life even during deep-reach stamping operations.
High Stroke Speed
Precision-ground crankshaft and helical gear drive deliver stroke rates from 25 to 80 SPM depending on tonnage and model. The heavy-duty flywheel stores substantial kinetic energy, providing consistent forming force at every stroke — ideal for medium-to-high volume production of large stamped components.
Comprehensive Safety System
Dual solenoid safety valves, emergency stop buttons on both sides, top-dead-center stopping, hydraulic overload protection and optional photoelectric light curtain guards come standard. The press control system ensures all safety interlocks are satisfied before each stroke cycle can initiate.
Wide Die Compatibility
The oversized bolster table and extended T-slot area accommodate large progressive dies, compound dies and single-station dies designed for wide-panel operations. Adjustable stroke length and motorized slide adjustment provide flexibility for a broad range of die heights and forming depths without costly press modifications.
Cost-Effective Deep Reach
The deep throat power press delivers extended reach capability at a fraction of the cost of straight-side presses. For operations that need to reach 210–450 mm into a workpiece but don’t require the extreme rigidity of a four-column frame, the deep throat design is the most economical solution — saving 40–60% in capital investment.
Need a Deeper Throat for Your Stamping Application?
Our engineers will evaluate your workpiece dimensions, required throat depth, material thickness and tonnage needs to recommend the ideal deep-throat power press model — ensuring full reach across your largest blanks.
Technical Data
Specifications
Available in a comprehensive range from 25 to 200 tons across multiple models. All models feature extended throat depth of 500 mm, pneumatic clutch & brake, adjustable stroke, hydraulic overload protection and CE-certified safety systems.
| Parameter | J21S-25T | J21S-40T | J21S-80T | J21S-125T | J21S-160T | J21S-200T |
|---|---|---|---|---|---|---|
| Nominal Force (KN) | 250 | 400 | 800 | 1250 | 1600 | 2000 |
| Slide Stroke (mm) | 70 | 100 | 115 | 130 | 130 | 140 |
| Number of Stroke (Times/min) | 70 | 50 | 40 | 40 | 40 | 35 |
| Closed Height (mm) | 270 | 320 | 380 | 400 | 400 | 490 |
| Max. Die Set Height (mm) | 200 | 220 | 265 | 270 | 270 | 350 |
| Die Height Adjustment (mm) | 40 | 60 | 60 | 80 | 80 | 100 |
| Throat Depth (mm) | 500 | 500 | 500 | 500 | 500 | 500 |
| Table Size F×B (mm) | 320 | 420 | 480 | 600 | 620 | 700 |
| Table Size L×R (mm) | 520 | 640 | 900 | 950 | 1000 | 1100 |
| Mold Handle Hole Φ (mm) | 40 | 50 | 60 | 60 | 60 | 70 |
| Mold Handle Hole Depth (mm) | 60 | 70 | 70 | 70 | 70 | 80 |
| Slide Bottom Size F×B (mm) | 165 | 220 | 250 | 360 | 340 | 340 |
| Slide Bottom Size L×R (mm) | 195 | 260 | 350 | 420 | 420 | 530 |
| Column Distance (mm) | 240 | 310 | 350 | 400 | 400 | 410 |
| Thickness of Table (mm) | 45 | 80 | 80 | 100 | 100 | 110 |
| Motor Power (KW) | 2.2 | 3 | 7.5 | 11 | 15 | 18.5 |
| Dimension Length (mm) | 1370 | 1780 | 2050 | 2360 | 2780 | 2350 |
| Dimension Width (mm) | 950 | 1050 | 1300 | 1450 | 1500 | 1740 |
| Dimension Height (mm) | 1950 | 1350 | 2550 | 2770 | 2850 | 3050 |
* Specifications based on standard configuration. Stroke rate is at continuous operation mode. Custom throat depths, tonnages and special bolster sizes available upon request. Contact our engineering team for tailored solutions.
Core Components
Machine Structure
Purpose-engineered with an extended-throat welded steel frame, high-accuracy crankshaft drive and advanced pneumatic clutch system — built for decades of reliable deep-reach stamping production.
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1
Extended Throat Steel Frame
Welded steel plate construction with FEA-optimized internal ribs, stress-relieved for dimensional stability. Provides 210–450 mm throat depth with deflection under 0.05 mm/m at rated tonnage.
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2
Crankshaft Drive System
Forged alloy steel crankshaft with precision-ground journals and helical gear transmission. Oversized bronze bushings and forced lubrication ensure cool, quiet running. Heavy flywheel delivers consistent energy.
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3
Pneumatic Clutch & Brake
Dry-type pneumatic friction clutch and brake unit with engagement and stopping within 50 ms. Supports single-stroke, continuous and inching modes. Oil-free design reduces maintenance.
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4
Slider (Ram) Assembly
Six-sided rectangular slider with precision-adjusted gibs for zero lateral play. Extended-length guides maintain full parallelism across the deeper throat geometry. Motorized slider adjustment standard.
Main Parts
C-Type Frame
The C-type frame design of the punching machine features a sturdy structure that provides excellent support and stability. Its open design allows for easier handling of larger or more complex workpieces. The C-type frame effectively reduces machine vibration, improving punching accuracy, while also making installation and maintenance more convenient.
This design allows the punching machine to operate efficiently and precisely under high load conditions.
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Quick Discharge
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Stretchung Function
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Trimming & Forming
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Vibration Reduction
How It Works
4-Step Deep-Reach Stamping Workflow
From oversized sheet metal panels to precision-formed components — the deep throat power press enables operations at the center of large workpieces with full tonnage and repeatable accuracy.
1
Position & Feed
Large sheet metal panels or pre-cut blanks are positioned on the extended bolster table. The deep throat allows the workpiece to extend freely behind the frame. CNC back gauges or manual positioning fixtures ensure accurate hole and feature placement relative to sheet edges.
2
Press & Form
The pneumatic clutch engages and the crankshaft drives the slide through the full stroke. The die performs punching, notching, forming or blanking with rated tonnage concentrated at bottom dead center — even at maximum throat extension, forming quality remains consistent.
3
Eject & Index
The knockout bar ejects the scrap slug through the bolster hole. The operator or automated system indexes the workpiece to the next position for the subsequent hit. The deep throat clearance allows unobstructed workpiece movement in all directions.
4
Repeat & Complete
The cycle repeats for each feature position on the panel. In continuous mode with automatic feeding, the press operates at full SPM rating. Stroke counter and tonnage monitor track production quality throughout the entire run.
Customize Your Machine
Key Components
Every critical component of the KAVDO deep throat power press is engineered for maximum durability, precision and operator safety — delivering reliable deep-reach stamping performance shift after shift.
Platform
Worktable
Heavy-duty bolster plate and T-slot worktable providing a rigid, precision-ground mounting surface for secure die installation and accurate part positioning across the extended throat depth.
- Precision-ground flat surface
- T-slot pattern for flexible die clamping
- Through-holes for part ejection
- Hardened & wear-resistant finish
Drive
Slider
Six-sided rectangular slider assembly with adjustable stroke length and shut height, guided by precision-adjusted gibs for accurate, repeatable ram travel under full tonnage at extended throat reach.
- Adjustable shut height & stroke
- Precision-adjusted gib guides
- Extended-length guide rails
- Motorized slider adjustment standard
Power Train
Crankshaft System
Forged alloy-steel crankshaft with heat-treated journals and precision bearings, delivering smooth rotary-to-linear motion conversion for consistent tonnage at bottom dead center across the deep throat frame.
- Forged alloy-steel construction
- Heat-treated bearing journals
- Dynamic balance for low vibration
- High fatigue-life design
Safety
Braking System
Dry-type pneumatic friction clutch and brake unit with rapid engagement for stopping within milliseconds, ensuring safe operation during single-stroke, continuous and inching modes.
- Pneumatic clutch-brake unit
- Fast response within 50 ms
- Long service-life friction discs
- 90° stopping angle guaranteed
Maintenance
Lubrication System
Automatic centralized lubrication system that delivers timed oil supply to all critical moving parts — crankshaft bearings, gib guides and connecting rod joints — reducing wear and extending machine life.
- Automatic timed oil delivery
- Centralized distribution manifold
- Low-oil-level alarm protection
- Reduces manual maintenance
Safety
Emergency Stop Switch
Strategically positioned mushroom-head emergency stop buttons that instantly cut power and engage the brake, bringing the slide to a complete stop for operator protection.
- Mushroom-head push-button design
- Multiple positions around the press
- Instant power cutoff & brake engage
- CE / ISO 13849 compliant
Applications
Industries We Serve
From architectural metalwork to stainless steel fabrication, from appliance panel stamping to decorative component production — the KAVDO deep throat power press delivers precision deep-reach stamping across diverse metalworking sectors.
Why KAVDO
Your Trusted Manufacturing Partner
Beyond machines — we deliver complete deep-throat stamping solutions including pre-sales engineering consultation, throat depth optimization, installation commissioning, operator training and lifelong after-sales support.
Factory Direct Price
Buy directly from our own factory — no middlemen. Competitive pricing with transparent quotation and no hidden costs. Bulk order discounts and complete stamping line packages available.
Engineering Support
Dedicated project engineer reviews your stamping requirements, recommends the optimal throat depth and tonnage, and provides die compatibility assessment and production line layout guidance for your specific applications.
Global Shipping
Professional heavy equipment export packing with anti-rust treatment, fumigation certificate and transport insurance. Full container or LCL shipping to any port worldwide with door-to-door service available.
Lifetime Support
Remote video troubleshooting, spare parts supply within 48 hours, on-site installation commissioning, operator training and optional annual maintenance contract for the entire life of the machine.
Get Started
Start Your Project with KAVDO Today
Get professional advice and competitive pricing within 24 hours. Tell us about your requirements and our team will prepare a tailored solution for you.
- Response within 24 hours
- Free technical consultation & quotation
- Serving 80+ countries worldwide
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