Super-B SQ32 Continuous-Flow Grain Dryer

The Super-B SQ32 is the entry point into the large commercial grain drying segment of the SUPER-B Energy Miser SQ Series. With 654 bushels of holding capacity, a 32-foot 8-inch grain column, and a 40 HP fan motor — a meaningful jump from the 30 HP fan on the SQ28 — the SQ32 is engineered for very large prairie operations, dedicated commercial drying businesses, mid-sized grain elevators, and major pulse processing operations.

The SQ32 represents a meaningful step up in fan capacity and column length over the SQ28. Where the SQ28 fits typical three-combine prairie operations, the SQ32 is sized for very large three-combine farms, four-combine operations, and commercial drying capacity that needs to consistently deliver 1,500+ BPH on prairie crops without throttling combines or batching grain.

For commercial operators in Saskatchewan, Alberta, and Manitoba — where dedicated drying capacity at this scale supports either very large farming operations or multi-farm custom drying businesses — the SQ32 frequently represents the right capacity-to-cost balance before stepping up to the substantially larger SQ36 or flagship SQ40.

SQ32 Configuration Choice — D, E, A, or M

The SQ32 is offered in four standard configurations defined by the letter suffix after the model number. All four share identical grain column dimensions, holding capacity, and core drying technology — the differences are in drying mode capability and fuel-efficiency features.

SQ32D — Full Heat (Single Zone)

Continuous-flow full-heat operation with one temperature throughout the column. Grain leaves the dryer hot and is cooled in-bin afterward. Lowest capital cost in the SQ32 frame.

Best for: Very large single-crop commercial operations with substantial in-bin cooling capacity. Less common at SQ32 scale because mode flexibility typically matters at this size.

SQ32E — Continuous Flow with Louvers

Adds adjustable cooling louvers enabling three drying modes: full heat, pressure heat / pressure cool, and pressure heat / vacuum cool. The standard configuration choice when the A configuration’s heat-recovery isn’t specifically prioritized.

Best for: Large mixed-crop commercial operations needing flexibility but not committing to the heat-recovery infrastructure.

SQ32A — Continuous Flow with Hot Air Return Duct (Highly Recommended)

Adds the hot air return duct for heat recovery — Super-B’s “Energy Miser” feature delivering up to 20% lower fuel consumption during continuous operation. At SQ32 scale, the A configuration is essentially mandatory for any operation looking at 5+ year ownership. Annual fuel consumption at this size is high enough that 20% savings deliver $15,000–35,000+ per year in operating cost reduction, paying back the configuration premium within 1.5–2.5 harvest seasons.

Best for: Very large prairie operations, dedicated commercial drying businesses, mid-sized grain elevators, and any SQ32 buyer planning long-term ownership.

SQ32M — Two-Temperature-Zone

Uses two distinct temperature zones for full-heat or pressure-heat / pressure-cool drying. Designed for high-throughput operations needing precise temperature staging across the grain column.

Best for: Large commercial seed-grade producers, major pulse processors handling premium-grade product, malting barley operations at significant scale, and specialty grain operations where temperature control directly affects grade-out and crop value at high throughput.

Key Specifications

Specification	Value
Series	SUPER-B Energy Miser SQ Series
Configuration	Single-module continuous flow
Total Fan HP	40 HP
Auger Load HP	7.5 HP
Chain Unload HP	2 HP
Column Length	32′ 8″
Overall Length	44′ 6″
Overall Height	14′ 2″
Total Holding Capacity	654 BU
Configurations Available	D (Full Heat), E (Louvers), A (Energy Miser), M (Two-Zone)
Fuel	LP or Natural Gas
Burner	Brock full flame-wall with stainless steel baffles
Blower	Double-width, double-inlet centrifugal (standard)
Grain Column	Variable-width (narrower top, wider bottom)
Outer Skins	18-gauge stainless steel perforated
Unloading	EVENFLO drag-chain conveyor
Standard Controls	QUANTUM or SPECTRUM
Optional Controls	INTUI-DRY 15.6″ touchscreen with remote access
Plenum Door	42″ × 22″ vertical access with safety shutdown switch

Drying Capacity by Crop and Mode

All capacities below are wet bushels per hour. Standard reference (corn 25.5%→15.5%) is published by Brock for cross-model comparison. Prairie crop capacities vary with grain temperature, ambient temperature, fines content, and crop maturity.

Corn Capacity (Manufacturer Standard Reference)

Mode	Moisture Removal	Capacity (BPH)
Full Heat – Single Zone (Model D)	25.5% to 15.5% (10 points)	969
Full Heat – Single Zone (Model D)	20.5% to 15.5% (5 points)	1,601
Modified Full Heat – Single Zone (Models M, E, A)	25.5% to 15.5%	931
Modified Full Heat – Single Zone (Models M, E, A)	20.5% to 15.5%	1,538
Pressure Heat – Two-Zone (Model M)	25.5% to 15.5%	878
Pressure Heat – Two-Zone (Model M)	20.5% to 15.5%	1,438

Approximate Prairie Crop Capacity (Practical Estimates)

Crop	Moisture Removal	Approximate Capacity (BPH)
Hard Red Spring Wheat	16% → 14.5% (1.5 points)	3,300–4,200
Wheat	18% → 14.5% (3.5 points)	1,900–2,500
Canola (crush grade, 82°C max)	12% → 8% (4 points)	1,450–1,950
Canola (seed grade, 45°C max)	12% → 8% (4 points)	720–1,050
Oats	16% → 14% (2 points)	2,300–3,100
Yellow Peas	18% → 16% (2 points)	1,750–2,300

These prairie-crop estimates are derived from the published corn ratings and typical efficiency factors for each crop. Always confirm capacity for your specific crop, moisture differential, and ambient conditions with your dealer before sizing.

Fan & Heater Configuration

The SQ32 runs a single 40 HP centrifugal blower — a meaningful step up from the SQ28’s 30 HP fan and the largest fan motor in any SQ Series unit smaller than the SQ36. The double-width, double-inlet centrifugal blower design provides:

• Significantly lower noise than axial fans found on most competitors and earlier Super-B models
• High static pressure capability for consistent airflow through the SQ32’s 32′ 8″ column
• Better energy efficiency at the SQ32’s drying capacity than equivalent axial designs

The 40 HP rating is critical at the SQ32’s column length. A longer column requires more static pressure to push (or pull) drying air through the grain mass — the 40 HP fan delivers the airflow needed to maintain consistent drying performance even when column resistance is elevated by tough crop conditions, fines accumulation, or high moisture loading.

The trade-off, common to all centrifugal-blower SQ Series units, is that the fan can ice up in extreme cold (typically below approximately –17°C) and may require a thaw-out cycle. For SQ32-class commercial operations running long harvest schedules, building thaw-out intervals into operating plans during cold late-October and November drying is standard practice. Some commercial SQ32 installations include supplementary heat at the fan inlet to mitigate icing in extreme conditions.

The Brock full flame-wall burner with stainless steel baffles distributes heat evenly across the SQ32’s longer grain column. The plenum is engineered to maintain uniform plenum temperatures from front to back — particularly critical on the SQ32 because the longer column has substantial potential for front-to-back temperature variation than shorter models. Uniform plenum temperature directly affects grain quality consistency at the SQ32’s high throughput.

The SQ32 is configured for either liquid propane (LP) or natural gas (NG) at order. For SQ32-class commercial operations drying 100,000+ bushels per season, natural gas is almost universally the right choice if available at the yard. The annual fuel cost difference at this volume frequently exceeds $20,000–40,000+ per season — large enough to justify substantial natural gas connection costs that would not be economic at smaller scale.

Grain Column & Holding Capacity

The SQ32 features Super-B’s variable-width grain column in its 32′ 8″ configuration — among the longest in the SQ Series lineup. The geometry follows the same principle as smaller SQ Series models — narrower at the top for efficient moisture removal, wider at the bottom for better dwell time — applied across a meaningfully longer column for substantially higher throughput.

Total holding capacity: 654 bushels — including the perforated wet garner bin at the top, the active grain column, and the discharge zone. The wet garner pre-warms incoming grain using exhaust heat from the lower drying chambers, beginning the drying process before grain enters the main column. At the SQ32’s high throughput, this pre-heating contributes substantially to overall drying efficiency.

Stainless steel perforated outer skins (18-gauge) are standard. With proper maintenance, stainless skins typically outlast every other component on the dryer. At commercial SQ32 scale, the skin assemblies represent significant capital value, and proper care directly affects 25–30+ year service life. Annual skin inspection — particularly in the lower column where moisture exposure is highest — is recommended at SQ32 scale.

For drying canola or other small grains at SQ32 capacity, the small grain screen option is essential. The SQ32’s high throughput means substantial potential for screen plugging from canola fines — active screen management during canola drying campaigns, including potentially mid-shift inspections at peak production, is standard practice on commercial SQ32 operations.

Loading, Unloading & Metering (EVENFLO System)

The SQ32 uses Super-B’s patented EVENFLO drag-chain unloading system scaled for high-throughput commercial operation.

Loading: A 7.5 HP top auger feeds wet grain from your wet bin into the SQ32’s perforated wet garner. The 7.5 HP rating (same as the SQ28) is sized to keep up with the SQ32’s drying capacity. At the SQ32’s high throughput, wet bin sizing and feed system reliability become critical operational factors — many SQ32 installations include redundant feed systems or oversized wet bins to protect against single-point failures during peak harvest.

Unloading via EVENFLO: A slow-moving drag-style chain conveyor at the base of the dryer powered by a 2 HP variable-speed AC motor. On the SQ32’s longer 32′ 8″ column, the EVENFLO advantages over conventional metering-roll systems become essential:

• Even unloading across the very long column length — eliminates flow imbalance that becomes severe on long columns at commercial throughput
• Gentler grain handling at high throughput — kernel damage stays low even at 1,500+ BPH where metering-roll systems begin showing meaningful damage
• Debris-tolerant — commercial SQ32 operations handle very large volumes with variable cleanliness, where metering rolls jam frequently
• Easier between-crop cleaning — removable top cover meaningfully reduces between-crop downtime at commercial scale
• Consistent metering — chain speed control delivers reproducible exit moisture even at peak commercial throughput

For commercial drying operations switching between wheat, canola, oats, and pulses on the same machine — common in custom drying businesses — the EVENFLO’s clean-out advantage at SQ32 scale represents real revenue protection through reduced changeover time.

Operating Modes

The SQ32 supports continuous-flow drying with mode capability dependent on configuration:

Full Heat (D, E, A, M configurations) — Maximum drying intensity. Grain exits the dryer hot and is cooled in-bin. Highest published BPH ratings — 1,601 BPH on corn at 5-point removal. Best for high-throughput drying with substantial in-bin cooling capacity.

Pressure Heat / Pressure Cool (E, A, M configurations) — Cooling air pushed through the lower portion of the column. Grain exits cooled and ready for direct binning. The most-used mode on commercial SQ32 operations because it eliminates in-bin cooling complexity at high volumes.

Pressure Heat / Vacuum Cool (E, A configurations) — Cooling air pulled through the lower column via vacuum. Different airflow characteristics than pressure cool.

Two-Zone Pressure Heat (M configuration only) — Hotter top zone for moisture removal, cooler bottom zone for finishing and grain protection. Used for sensitive crops at very high throughput.

For most prairie SQ32 buyers, the A configuration with pressure cool mode delivers the best operating economics — fuel savings on a heavy-use SQ32 directly offset the configuration premium in 1.5–2.5 harvest seasons.

Transport & Installed Dimensions

Dimension	Value
Overall Length	44′ 6″
Overall Height	14′ 2″
Overall Width (varies by config)	Approximately 10′ 6″
Total Fan HP	40
Auger Load HP	7.5
Chain Unload HP	2

The SQ32 is designed exclusively as a fixed installation. The combination of size (44′ 6″ overall length), weight, and infrastructure requirements means relocation is not practical — SQ32 installations are permanent commercial infrastructure.

Concrete pad requirement: The SQ32 requires a heavily reinforced concrete pad designed for the dryer’s operating weight plus full grain load. The 44′ 6″ length means pad engineering must address distributed loading, soil conditions, and frost heave protection in prairie installations. Engineered pad design by a structural engineer is standard practice at SQ32 scale.

Three-phase electrical service: Required and typically requires substantial service capacity. The 40 HP fan motor and supporting auxiliary loads draw significant amperage. SQ32 buyers should verify three-phase service amperage capacity and may need utility upgrades. Confirm service requirements with your dealer and provincial utility before committing.

INTUI-DRY Controls and Remote Monitoring

Like all current SQ Series dryers, the SQ32 supports two control system options:

QUANTUM or SPECTRUM Controllers (Standard) — Brock’s standard electronic dryer controllers covering all operating modes, plenum temperature setpoints, moisture targeting, and basic diagnostic logging.

INTUI-DRY Controller (Optional Upgrade — Essentially Required for SQ32) — A 15.6-inch full-color touchscreen system with intuitive management of all dryer functions and remote smartphone access.

For commercial SQ32 operations, INTUI-DRY upgrade is no longer optional in practical terms:

1. At SQ32 scale, downtime cost is enormous. A 4-hour fault response time on a 1,500+ BPH unit means thousands of dollars in lost throughput. Remote monitoring catches faults in minutes, not hours.
2. Multi-operator and multi-bin coordination at SQ32 scale benefits substantially from INTUI-DRY’s profile management, real-time data, and accessible logging.
3. Season-over-season optimization through INTUI-DRY’s data logging delivers meaningful efficiency gains at the SQ32’s very high annual volumes — even 1% improvements translate to thousands in fuel savings.
4. Custom drying operations running multiple customer accounts benefit from INTUI-DRY’s ability to track performance and condition history per customer.

Optional Equipment

Beyond the standard configuration, the SQ32 supports several factory and dealer-installed options:

Small Grain Screen — Smaller perforations for canola, mustard, and other small grains. Reduces maximum throughput on standard crops by approximately 20%.

MOISTURE EQUALIZER System — A patented Brock option that moves the hottest and driest grain through the dryer faster, improving drying uniformity. Highly valuable on the SQ32 because the longer column has substantial potential for moisture variation top-to-bottom at high throughput.

INTUI-DRY Touchscreen Upgrade — Essentially required at SQ32 commercial scale.

Heat-Recovery Hot Air Return Duct (A configuration) — Up to 20% fuel savings during continuous operation. On the SQ32, the per-season fuel cost reduction typically pays back the configuration premium in 1.5–2.5 years for operations drying 100,000+ bushels annually. This is the fastest payback on the configuration premium across the entire SQ Series lineup.

Reversing Cooling Louvers (E, A, M configurations) — Adjustable cooling louvers for fine-tuning the cooling air volume.

Service Access Catwalks and Platforms — Required for safe operation and maintenance access. The SQ32’s larger size means substantial catwalk and ladder requirements — catwalk infrastructure on SQ32 installations is significant capital and engineering work in itself.

Pneumatic Discharge System Compatibility — Most Canadian SQ32 installations pair the dryer with a Walinga Ultra-Veyor or similar pneumatic distribution system to move dry grain to multiple bins at high speed.

Supplementary Fan Inlet Heating — Some commercial SQ32 installations add inlet pre-heating to mitigate centrifugal fan icing in extreme cold. Discuss with your dealer if your operation will run heavily in late-October and November on the prairies.

Best Applications for the SQ32

The SQ32 fits a specific operational profile for very large prairie farms and commercial drying operations.

Best fit for the SQ32:

• Very large three-combine and four-combine prairie operations (typically 8,000+ acres)
• Dedicated commercial drying businesses serving multiple farms across a region
• Mid-sized grain elevators handling regional drying contracts
• Major pulse processing operations
• Large seed plants where temperature staging matters at very high throughput
• Operators replacing aging large-frame commercial dryers from any manufacturer
• Yards with substantial three-phase electrical service, pneumatic discharge, and professional engineering support

Best fit for the SQ32A (Energy Miser — essentially required):

• Any SQ32-class operation drying 100,000+ bushels per season
• Custom drying businesses running long harvest schedules
• Long-term ownership scenarios where the heat-recovery payback period (typically 1.5–2.5 years on SQ32-class operations) is the fastest in the SQ Series

Best fit for the SQ32E:

• Operations specifically prioritizing slightly lower capital cost over fuel-recovery
• Buyers planning shorter ownership horizons (rare at SQ32 scale)

Best fit for the SQ32M:

• Large commercial seed-grade canola producers needing precise temperature staging
• Major pulse processors handling premium-grade product
• Large malting barley operations

Less suitable for:

• Three-combine operations where the SQ28 already meets demand — the SQ32’s substantial capital cost premium isn’t justified
• Operations consistently exceeding the SQ32’s capacity — step up to the SQ36 or SQ40
• Yards without three-phase service capacity for the 40 HP fan motor
• Smaller commercial operations where SQ32 capital cost cannot be justified by drying volumes

How the SQ32 Compares to Adjacent Models

SQ32 vs SQ28: The SQ28 has a 28′ 7″ column versus the SQ32’s 32′ 8″, with a 30 HP fan versus 40 HP, and 572 BU holding versus 654 BU. Drying capacity in corn at 5-point removal increases from 1,371 BPH (SQ28) to 1,601 BPH (SQ32) — about 17% more. The SQ32’s larger fan capacity is meaningful — the 40 HP fan delivers materially better high-load performance than the 30 HP fan on the SQ28. The SQ32 is the right choice for very large three-combine, four-combine, and commercial operations; the SQ28 remains the better choice for typical three-combine prairie farms.

SQ32 vs SQ36: The SQ36 has a 36′ 9″ column, 50 HP fan (a substantial step up from 40 HP), 10 HP loader (versus 7.5 HP), and 734 BU holding. Drying capacity in corn at 5-point removal increases from 1,601 BPH (SQ32) to 1,761 BPH (SQ36) — about 10% more. The SQ36 is the right step up for very large commercial drying operations where the SQ32 has become a bottleneck. The SQ32 is the better choice when the SQ36’s additional capacity isn’t consistently needed.

SQ32 vs SQ24: The SQ24 is significantly smaller — 490 BU holding, 25 HP fan, 24′ 6″ column. Corn drying capacity at 5-point removal is 1,211 BPH on the SQ24 versus 1,601 BPH on the SQ32 — about 32% more on the SQ32. The SQ24 is the prairie sweet spot for two-combine operations; the SQ32 is the right choice for very large commercial scale.

Frequently Asked Questions

What’s the difference between the SQ32, SQ32E, SQ32A, and SQ32M? All four are the same SQ32 model with different drying mode capabilities. SQ32D is full heat only, SQ32E adds louvers for pressure cool modes, SQ32A adds the heat-recovery duct for fuel savings (Energy Miser — essentially required at SQ32 scale), SQ32M provides two-temperature-zone operation. The A configuration is the most economically justified choice for typical SQ32 commercial operations.

Is the SQ32 a portable or fixed dryer? The SQ32 is exclusively a fixed installation. At 44′ 6″ overall length and the associated infrastructure requirements, relocation is not practical.

What’s the holding capacity of the SQ32? 654 bushels total — including the wet garner bin, active drying column, and discharge zone.

How much grain can an SQ32 dry per hour? Manufacturer-published capacity in corn is 1,601 BPH at 5-point moisture removal (Model D, full heat) and 969 BPH at 10-point removal. For prairie crops, capacity varies significantly: wheat at 1.5-point removal can run 3,300-4,200 BPH, while seed-grade canola at 4-point removal at the 45°C temperature limit may run 720-1,050 BPH. Always confirm capacity for your specific scenario with your dealer.

Why is the A (Energy Miser) configuration essentially required on the SQ32? At SQ32 scale, annual fuel consumption is so high that the 20% savings from the heat-recovery hot air return duct translate to $15,000–35,000+ per year in operating cost reduction. The configuration premium typically pays back in 1.5–2.5 harvest seasons — the fastest payback in the SQ Series lineup. Skipping the A configuration at SQ32 scale rarely makes economic sense for any operation planning long-term ownership.

What’s the difference between the SQ32’s 40 HP fan and the SQ28’s 30 HP fan? Beyond the 33% capacity increase, the larger fan delivers materially better static pressure performance under load. On the SQ32’s longer column, the 40 HP fan maintains consistent airflow even when column resistance is elevated by tough crop conditions, fines accumulation, or high moisture loading. The 30 HP fan on the SQ28 is well-matched to that machine but would be undersized for the SQ32’s column length.

Does the SQ32 require special electrical infrastructure? Yes — the 40 HP fan motor and supporting auxiliary loads require substantial three-phase service capacity. SQ32 buyers should verify three-phase amperage capacity with their provincial utility before committing to the platform. Utility service upgrades are common at SQ32 installation projects.

Does the SQ32 handle canola at commercial throughput? Yes — with the small grain screen option and proper temperature management (45°C maximum for seed grade, 82°C maximum for crush grade per Canola Council guidelines). At SQ32 throughput, active screen management during canola drying campaigns is essential — including potentially mid-shift inspections at peak production.

What fuel does the SQ32 use? LP (liquid propane) or natural gas (NG), selected at order. For SQ32-class commercial operations drying 100,000+ bushels per season, natural gas is essentially the universal choice if available at the yard. The annual fuel cost difference frequently exceeds $20,000–40,000+ per season — large enough to justify substantial natural gas connection costs that would not be economic at smaller scale.

How long does an SQ32 last? With proper maintenance, current SQ Series units are designed for 25–30+ year service life. At SQ32 commercial scale, professional service contracts and rigorous preventive maintenance practices are standard — the cost of unplanned downtime far exceeds proactive maintenance investment.

What financing is typical for an SQ32 purchase? At SQ32 capital cost levels, structured equipment financing through Farm Credit Canada, ATB Financial, major Canadian banks, or manufacturer-supported financing programs is standard. Lease-to-own and operating lease arrangements are common at this scale, particularly for custom drying businesses where revenue cycles support structured payments. Get multiple quotes before negotiating equipment pricing.

Is the SQ32 right for a custom drying business? Often yes — the SQ32 hits a sweet spot for regional commercial drying operations serving 5–15 farms within reasonable trucking distance. The combination of high throughput, fuel efficiency (with the A configuration), and Brock’s strong dealer support makes it well-suited to commercial drying revenue models. Validate with detailed financial modeling before committing.

Related Models in the SQ Series

• Super-B SQ24 — 490 BU holding, two-combine prairie sweet spot
• Super-B SQ28 — 572 BU holding, three-combine operations
• Super-B SQ36 — 734 BU holding, very large commercial operations
• Super-B SQ40 — 815 BU holding, flagship model

For complete buying guidance — sizing math, crop-specific operation, used vs. new pricing, and how Super-B compares to GSI, Vertec, and Neco — read our Super-B grain dryers buyer’s guide.

Browse all grain dryers on Aglist to compare across manufacturers.

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